MG
50 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Granthom, Obstetrician / Gynecologist (OBGYN) in Watsonville, CA?
Dr. Maria Granthom, MD is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Watsonville, CA with 2 additional practice locations. She has been practicing for over 50 years and is board certified. Dr. Granthom graduated from Cebu Institute of Medicine and completed her residency at St Joseph Hosp, Obstetrics And Gynecology; St Joseph Hosp, Flexible Or Transitional Year. Dr. Granthom is fluent in English, Spanish, and Tagalog, and is currently seeing new patients. Dr. Granthom’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Granthom’s office at (831) 728-0222.
Where did Dr. Granthom go to medical school and complete their residency?
Residency: St Joseph Hosp, Obstetrics And Gynecology; St Joseph Hosp, Flexible Or Transitional Year | Exempla St Joseph Hospital Program
Medical School: Cebu Institute of Medicine
Is Dr. Granthom board certified as an Obstetrician / Gynecologist (OBGYN)?
Yes, Dr. Maria Granthom, MD is board certified by the American Board of Obstetrics and Gynecology
What languages does Dr. Granthom speak?
Dr. Granthom and their clinical team can communicate with patients in the following languages:
English
Spanish
Tagalog
What conditions does an Obstetrician / Gynecologist (OBGYN) like Dr. Granthom typically treat?
As an Obstetrician / Gynecologist (OBGYN), Dr. Granthom diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Granthom. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Third Trimester Prenatal Care
- Second Trimester Prenatal Care
- First Trimester Prenatal Care
- Prenatal Care
- Late Pregnancy Check-ups
- Routine Third Trimester Care
- Maternity Care (Third Trimester)
- Mid-Pregnancy Check-ups
- Routine Second Trimester Care
- Maternity Care (Second Trimester)
- Early pregnancy care
- First trimester check-ups
- Antenatal care in early pregnancy
ICD-10 Codes:
- Z3483: Encounter for supervision of other normal pregnancy, third trimester
- Z3482: Encounter for supervision of other normal pregnancy, second trimester
- Z3481: Encounter for supervision of other normal pregnancy, first trimester
Also known as:
- General High-Risk Pregnancy Care
- Health Problems in Pregnancy
- Specialized Obstetric Monitoring
- Maternal-Fetal Medicine Consult
- Pregnancy Management for Complications
ICD-10 Codes:
- O0993: Supervision of high risk pregnancy, unspecified, third trimester
Also known as:
- Routine Postpartum Check-up
- Postpartum Care
- After-birth Follow-up
- Postnatal Care Visit
- Maternal Postpartum Exam
ICD-10 Codes:
- Z392: Encounter for routine postpartum follow-up
Also known as:
- Cervical Cancer Screening
- HPV and Pap Test Results
- Pap Test
- HPV Test
- Cervical Smear
- Early Cervical Cancer Detection
ICD-10 Codes:
- Z124: Encounter for screening for malignant neoplasm of cervix
Also known as:
- Immunization Visit
- Vaccines
- Vaccination appointment
- Shot visit
- Immunization encounter
ICD-10 Codes:
- Z23: Encounter for immunization
What procedures does an Obstetrician / Gynecologist (OBGYN) like Dr. Granthom typically perform?
As an Obstetrician / Gynecologist (OBGYN), Dr. Granthom performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Granthom. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Fetal Non-Stress Test
- Nonstress Test
- Nonstress Test (NST)
- Fetal Heart Rate Monitoring
- NST for Pregnancy
- Baby Heartbeat Test
CPT Codes:
- 59025: Fetal non-stress test
Also known as:
- Drug Delivery Implant Insertion
- Medication Implant Placement
- Bioresorbable Drug Implant
- Contraceptive Implant Insertion
CPT Codes:
- 11981: Insertion, drug-delivery implant (ie, bioresorbable, biodegradable, non-biodegradable)
Also known as:
- Removal of Non-Biodegradable Drug Implant
- Drug Delivery Device Removal
- Permanent Drug Implant Explant
- Non-Dissolving Implant Removal
CPT Codes:
- 11982: Removal, non-biodegradable drug delivery implant
Also known as:
- Removal of Birth Control Implant
- Birth Control
- Contraceptive Implant Removal
- Nexplanon Removal
- Arm Implant Removal
- Birth Control Capsule Removal
CPT Codes:
- 11976: Removal, implantable contraceptive capsules
Also known as:
- IUD Insertion
- Birth Control
- Intrauterine device placement
- IUD placement
- Birth control implant
CPT Codes:
- 58300: Insertion of intrauterine device (IUD)
Does Dr. Granthom accept my insurance?
Dr. Granthom accepts most major insurance plans. Important: Please call our office at (831) 728-0222 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Granthom accept in Watsonville, CA?
Dr. Granthom in Watsonville, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Blue Shield of California
Bright Health
Centene Corporation
Cigna Group
Elevance Health Inc. (formerly Anthem)
Medicare
Santa Cruz County
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Granthom's office located?
Dr. Maria Granthom's Primary Practice
204 E Beach St
Watsonville, CA 95076
(831) 728-0222
What is Dr. Granthom's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Granthom's National Provider Identifier (NPI) number is 1679750327.
What common questions do patients ask about Dr. Granthom?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Granthom
What is Dr. Maria Granthom's specialty?
Dr. Granthom is a Obstetrician / Gynecologist (OBGYN) near Watsonville, CA.
What does an Obstetrician / Gynecologist (OBGYN) do?
An obstetrician/gynecologist has specialized knowledge, skills, and expertise in the medical and surgical management of the female reproductive system and related disorders. This physician acts as a consultant to other healthcare providers while also serving as a primary care physician for women, addressing their unique health needs throughout various stages of life.
Is this Dr. Maria Granthom affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Granthom is affiliated with Clovis Community Medical Center, Community Regional Medical Center - Fresno which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see an Obstetrician / Gynecologist (OBGYN)?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see an Obstetrician / Gynecologist (OBGYN). Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Maria Granthom accepting new patients in Watsonville, CA?
Yes, Dr. Maria Granthom is accepting new patients at this time.
Does Dr. Maria Granthom offer online booking?
Please contact Dr. Granthom's office at (831) 728-0222 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Maria Granthom?
Please contact Dr. Granthom's office at (831) 728-0222 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Maria Granthom have?
Dr. Maria Granthom is certified by the American Board of Obstetrics and Gynecology.
Other Obstetrician / Gynecologist (OBGYN) Near Watsonville, CA

Obstetrician / Gynecologist (OBGYN)
Dr. Katherine Gabriel-Cox, MD is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Watsonville, CA with 1 additional practice location.
Watsonville, CA
NV
Obstetrician / Gynecologist (OBGYN)
Dr. Neelima Vegesna, MD is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Watsonville, CA with 1 additional practice location. She is board certified.
Watsonville, CA
CA
Obstetrician / Gynecologist (OBGYN)
Dr. Charlotte Lynn Alexander, MD is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Watsonville, CA with 2 additional practice locations.
Watsonville, CA