
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Mass, Obstetrician / Gynecologist (OBGYN) in Grayslake, IL?
Dr. Karen Mass, MD is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Grayslake, IL with 1 additional practice location. She is board certified. Dr. Mass graduated from University of Illinois College of Medicine and completed her residency at Univ Of Mi Hosps & Hlth Ctrs, Obstetrics And Gynecology. Dr. Mass is fluent in English and Spanish, and is currently seeing new patients. Dr. Mass’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Mass’s office at (847) 295-0433.
Where did Dr. Mass go to medical school and complete their residency?
Residency: Univ Of Mi Hosps & Hlth Ctrs, Obstetrics And Gynecology | University of Michigan Program
Medical School: University Of Il Coll Of Med- Chicago Il | University of Illinois College of Medicine
Is Dr. Mass board certified as an Obstetrician / Gynecologist (OBGYN)?
Yes, Dr. Karen Mass, MD is board certified by the American Board of Obstetrics and Gynecology
What languages does Dr. Mass speak?
Dr. Mass and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does an Obstetrician / Gynecologist (OBGYN) like Dr. Mass typically treat?
As an Obstetrician / Gynecologist (OBGYN), Dr. Mass 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. Mass. 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:
- 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:
- Mammogram for Breast Cancer Screening
- Health Screening
- Mammography
- Breast Cancer Screening (PDQ®)
- Mammograms
- Breast X-ray
- Breast Cancer Check
ICD-10 Codes:
- Z1231: Encounter for screening mammogram for malignant neoplasm of breast
Also known as:
- Urinary Tract Infection
- UTI
- Bladder infection
- Kidney infection
- Urine infection
ICD-10 Codes:
- N390: Urinary tract infection, site not specified
Also known as:
- Routine Gynecological Exam (Normal Findings)
- Women's Health Checkup
- Women's checkup, all clear
- Pelvic exam, normal results
- OB/GYN visit, no issues
ICD-10 Codes:
- Z01419: Encounter for gynecological examination (general) (routine) without abnormal findings
Also known as:
- Vitamin D Deficiency
- Low Vitamin D Levels
- Lack of Vitamin D
- Hypovitaminosis D
ICD-10 Codes:
- E559: Vitamin D deficiency, unspecified
Also known as:
- Abnormal Breast Imaging Results
- Mammography
- Inconclusive mammogram
- Unclear breast scan results
- Abnormal breast scan
ICD-10 Codes:
- R928: Other abnormal and inconclusive findings on diagnostic imaging of breast
Also known as:
- Asymptomatic Menopause
- Menopause
- Menopausal Transition
- Postmenopause
- Change of Life
ICD-10 Codes:
- Z780: Asymptomatic menopausal state
What procedures does an Obstetrician / Gynecologist (OBGYN) like Dr. Mass typically perform?
As an Obstetrician / Gynecologist (OBGYN), Dr. Mass 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. Mass. 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:
- Hysteroscopy with Biopsy or Polyp Removal
- Biopsy
- Hysteroscopy
- Uterine Scope with Biopsy
- Hysteroscopic Polypectomy
- D&C with Hysteroscopy
CPT Codes:
- 58558: Hysteroscopy, surgical; with sampling (biopsy) of endometrium and/or polypectomy, with or without D & C
Does Dr. Mass accept my insurance?
Dr. Mass accepts most major insurance plans. Important: Please call our office at (847) 295-0433 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Mass accept in Grayslake, IL?
Dr. Mass in Grayslake, IL accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Cigna Group
Corporate Services
CVS Health (formerly Aetna)
Federal government of the United States
Health Care Service Corporation
Humana
Medicare
State of Illinois
UMR Administered Payer
UnitedHealth Group
View All Insurances
Where is Dr. Mass' office located?
Dr. Karen Mass' Primary Practice
1475 E Belvidere Rd Ste 212
Grayslake, IL 60030
(847) 295-0433
What hospitals are Dr. Mass affiliated with?
Castle Connolly Top Hospital
This doctor is affiliated with a Castle Connolly Top Hospital.
Dr. Mass has admitting privileges at the following hospitals:
Northwestern Memorial Hospital,Chicago, IL
Ranked in 4 Procedures

Ranked in 4 Procedures
Northwestern Medicine Lake Forest Hospital,Lake Forest, IL
Gold Standard Top Hospital

Ranked in 2 Specialties

Ranked in 3 Procedures

Gold Standard Top Hospital
Ranked in 2 Specialties
Ranked in 3 Procedures
Northwestern Medicine Mchenry Hospital,McHenry, IL
Ranked in 2 Specialties

Ranked in 4 Procedures

Ranked in 2 Specialties
Ranked in 4 Procedures
Endeavor Health Evanston Hospital,Evanston, IL
Ranked Cancer Surgery

Ranked in 4 Procedures

Ranked Cancer Surgery
Ranked in 4 Procedures
Northwestern Medicine Kishwaukee Hospital,DeKalb, IL
Ranked General Surgery

Ranked Hernia Repair Surgery

Ranked General Surgery
Ranked Hernia Repair Surgery
Northwestern Medicine Palos Hospital,Palos Heights, IL
Ranked in 2 Specialties

Ranked in 4 Procedures

Ranked in 2 Specialties
Ranked in 4 Procedures
What is Dr. Mass's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Mass's National Provider Identifier (NPI) number is 1710179759.
What common questions do patients ask about Dr. Mass?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Mass
What is Dr. Karen Mass's specialty?
Dr. Mass is an Obstetrician / Gynecologist (OBGYN) near Grayslake, IL.
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 Dr. Karen Mass affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Mass is affiliated with Northwestern Memorial Hospital, Northwestern Medicine Lake Forest Hospital, Northwestern Medicine Mchenry Hospital, Endeavor Health Evanston Hospital, Northwestern Medicine Kishwaukee Hospital, Northwestern Medicine Palos Hospital 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 Dr. Karen Mass accepting new patients in Grayslake, IL?
Yes, Dr. Karen Mass is accepting new patients at this time.
Does Dr. Karen Mass offer online booking?
Please contact Dr. Mass' office at (847) 295-0433 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Dr. Karen Mass?
Please contact Dr. Mass' office at (847) 295-0433 to schedule an appointment.
Where is Dr. Mass' office located?
Dr. Mass' offices are located in Grayslake, IL and Lake Forest, IL.
Which board certifications does Dr. Karen Mass have?
Dr. Karen Mass is certified by the American Board of Obstetrics and Gynecology.
Other Obstetrician / Gynecologist (OBGYN) Near Grayslake, IL

Obstetrician / Gynecologist (OBGYN)
