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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. MARY CAROLYN FAHRMEIER MD
NPI 1245252303
Psychiatry & Neurology - Psychiatry in Berwyn, IL

Active since July 24, 2006PECOS EnrolledAccepts Medicare Assignment
3249 OAK PARK AVE, BERWYN, IL 60402(708) 783-2226 Get Directions Write a Review

NPPES record last updated: June 23, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 5, 2023, Oct 11, 2023, Jul 27, 2023 and 8 more (11 updates tracked since 2016).

About Dr. Mary Carolyn Fahrmeier Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARY CAROLYN FAHRMEIER MD (NPI 1245252303) is an individual psychiatry provider in Berwyn, Illinois, licensed in Illinois (036159744) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Cgh Medical Center, and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1245252303
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameDR. MARY CAROLYN FAHRMEIERCredential: MD
Location Address3249 OAK PARK AVEBerwyn, IL 60402-3429
Mailing Address3249 Oak Park AveBerwyn, IL 60402-3429
Phone(708) 783-2226
Sole ProprietorNo
Medical School CMSKansas City College Of Medicine And SurgeryGraduated 2002
Enumeration DateJuly 24, 2006
Last NPPES UpdateJune 23, 202611 updates tracked since enumeration
NPPES CertifiedJune 23, 2026
✔ NPI 1245252303 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
Licenses✔ Licensed in IL · 036159744✔ Licensed in MO · 2006012798✔ Licensed in VA · 0101268496✔ Licensed in IN · 01097828A✔ Licensed in WI · 1917
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
3249 OAK PARK AVE, Berwyn, IL 60402
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Other Names 1

Former Name (1)Dr. Mary Carolyn Barton .d.

Secondary Practice Locations 4

Location 11500 Commonwealth AveWilliamsburg, VA 23185-5229 · Phone (757) 585-2250 · Fax (757) 903-2285
Location 220201 Crawford AveOlympia Fields, IL 60461-1010 · Phone (219) 866-5141 · Fax (708) 679-2161
Location 3515 22nd AveMonroe, WI 53566-1569 · Phone (608) 324-2000
Location 41701 S Creasy LnLafayette, IN 47905-4972 · Phone (765) 502-4401 · Fax (765) 502-4866

Other Identifiers 1

Medicaid1245252303MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, CareSource and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mary Carolyn Fahrmeier Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4880657527
PECOS Enrollment IDI20060814000444, I20210108000257, I20210504001869, I20220720000119, I20240305003808
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychiatric diagnostic evaluation with medical services 90792
A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.
64 services64 patients
Psychiatric diagnostic evaluation with medical services 90792
A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.
42 services42 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
39 services29 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
34 services22 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Cgh Medical Center

Acute Care Hospitals · Sterling, IL
2/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number140043
Location100 East Lefevre RoadSterling, IL 61081 · Whiteside County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60402 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$183.39 typical visit price
range $60.08 – $183.39
Typical copayment $45.84 (range $15.02 – $45.84)
Most-billed visit code 99205
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. DANIELLE GENGO R.D.
Dietitian, Registered
3249 OAK PARK AVE
BERWYN, IL 60402
Cook County (708) 783-3077
GOTTLIEB COMMUNITY HEALTH SERVICES CORPORATION
General Practice
3249 OAK PARK AVE
BERWYN, IL 60402
Cook County (708) 783-3125
MARIA RAMIREZ
Family Medicine
3249 OAK PARK AVE
BERWYN, IL 60402
Cook County (708) 783-9100
PATRICIA NAUGHTON MD
Obstetrics & Gynecology
3249 OAK PARK AVE
BERWYN, IL 60402
Cook County (708) 783-3792
MELANIE SZASZ PA-C
Physician Assistant
3249 OAK PARK AVE
BERWYN, IL 60402
Cook County (708) 783-9100
PAUL G FAINE M.D.
Emergency Medicine
3249 OAK PARK AVE
BERWYN, IL 60402
Cook County (708) 783-9100
DR. BHARTI RAIZADA M.D,
Anesthesiology
3249 OAK PARK AVE
BERWYN, IL 60402
Cook County (708) 783-6339
SHEENA REDDY KODAVALURU M.D.
Internal Medicine
3249 OAK PARK AVE, MACNEAL HOSPITAL
BERWYN, IL 60402
Cook County (708) 783-9100

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Fahrmeier's NPI number?

The NPI number for Mary Fahrmeier is 1245252303. It was assigned to this individual provider in the NPPES registry on July 24, 2006. The provider is also known as Dr. Mary Carolyn Barton .D..

Where is Mary Fahrmeier located?

Mary Fahrmeier practices at 3249 Oak Park Ave, Berwyn, IL 60402. The listed phone number is (708) 783-2226.

What is Mary Fahrmeier's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Mary Fahrmeier enrolled in Medicare?

Yes. Mary Fahrmeier is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Mary Fahrmeier accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, CareSource, Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) and 8 other insurers list Mary Fahrmeier as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mary Fahrmeier affiliated with any hospitals?

According to CMS data, Mary Fahrmeier is affiliated with Cgh Medical Center.

When was this NPI record last updated?

The NPPES record for Mary Fahrmeier was last updated on June 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 46 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.