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GRETCHEN E ZAJAC PA-C
NPI 1013386101
Physician Assistant in Ann Arbor, MI

Active since September 18, 2015PECOS EnrolledAccepts Medicare Assignment
1500 E. MEDICAL CENTER DR, 2ND FLOOR TAUBMAN CENTER RECP B, ANN ARBOR, MI 48109(734) 936-5780 Get Directions Write a Review

NPPES record last updated: October 6, 2015. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Gretchen E Zajac Pa-c NPPES

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

GRETCHEN E ZAJAC PA-C (NPI 1013386101) is an individual physician assistant in Ann Arbor, Michigan, licensed in Michigan (5601007403) and active in the NPI registry since September 2015. She is enrolled in Medicare PECOS, is affiliated with Chelsea Hospital, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1013386101
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameGRETCHEN E ZAJACCredential: PA-C
Location Address1500 E. MEDICAL CENTER DR, 2ND FLOOR TAUBMAN CENTER RECP BAnn Arbor, MI 48109-5328
Mailing Address3621 South State Street, 700 Kms PlaceAnn Arbor, MI 48108 · (734) 936-2047
Phone(734) 936-5780
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateSeptember 18, 2015
Last NPPES UpdateOctober 6, 2015
✔ NPI 1013386101 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in MI · 5601007403
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
1500 E. MEDICAL CENTER DR, Ann Arbor, MI 48109
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Michigan Mutual Insurance Company.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

Gretchen E Zajac Pa-c 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 ID8022327659
PECOS Enrollment IDI20151022001429
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 2

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
18 services17 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
14 services14 patients

Hospital Affiliations CMS Care Compare

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

Chelsea Hospital

Acute Care Hospitals · Chelsea, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230259
Location775 S Main StChelsea, MI 48118 · Washtenaw County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48109 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
$90.76 typical visit price
range $58.04 – $177.36
Typical copayment $22.69 (range $14.51 – $44.34)
Most-billed visit code 99203
Established Patient
$72.38 typical visit price
range $18.32 – $143.49
Typical copayment $18.09 (range $4.58 – $35.87)
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 13

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

MARIKO CHING MD
Student in an Organized Health Care Education/Training Program
1500 E. MEDICAL CENTER DR, TC B1380
ANN ARBOR, MI 48109
Washtenaw County (734) 763-7919
LAURA ZEITLIN MSW
Social Worker (Clinical)
1500 E. MEDICAL CENTER DR, D2202 MEDICAL PROFESSIONAL BLD
ANN ARBOR, MI 48109
Washtenaw County (734) 936-7090
ANDREW LEKARCZYK MD
Student in an Organized Health Care Education/Training Program
1500 E. MEDICAL CENTER DR, TC B1380 SPC 5305
ANN ARBOR, MI 48109
Washtenaw County (734) 763-7919
MADELEINE KING
Student in an Organized Health Care Education/Training Program
1500 E. MEDICAL CENTER DR
ANN ARBOR, MI 48109
Washtenaw County (734) 763-7919
DR. RACHAEL TESORERO MD
Emergency Medicine
1500 E. MEDICAL CENTER DR
ANN ARBOR, MI 48109
Washtenaw County (734) 763-7919
MAIA DINSMORE
Emergency Medicine
1500 E. MEDICAL CENTER DR
ANN ARBOR, MI 48109
Washtenaw County (734) 763-7919
CHARLES RYAN MD
Student in an Organized Health Care Education/Training Program
1500 E. MEDICAL CENTER DR, TC B1380 SPC 5305
ANN ARBOR, MI 48109
Washtenaw County (734) 763-7919
ISABELLA RAMICONE MD
Student in an Organized Health Care Education/Training Program
1500 E. MEDICAL CENTER DR, TC B1380 SPC 5305
ANN ARBOR, MI 48109
Washtenaw County (734) 763-7919

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 Gretchen Zajac's NPI number?

The NPI number for Gretchen Zajac is 1013386101. It was assigned to this individual provider in the NPPES registry on September 18, 2015.

Where is Gretchen Zajac located?

Gretchen Zajac practices at 1500 E. Medical Center Dr 2nd Floor Taubman Center Recp B, Ann Arbor, MI 48109. The listed phone number is (734) 936-5780.

What is Gretchen Zajac's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Gretchen Zajac enrolled in Medicare?

Yes. Gretchen Zajac 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 Gretchen Zajac accept?

Health plans from Blue Cross Blue Shield of Michigan Mutual Insurance Company list Gretchen Zajac 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 Gretchen Zajac affiliated with any hospitals?

According to CMS data, Gretchen Zajac is affiliated with Chelsea Hospital.

When was this NPI record last updated?

The NPPES record for Gretchen Zajac was last updated on October 6, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.