Anna Kathryn Pfeiffer , PA-C
Physician Assistant β’ Oak Lawn, IL
9921 Southwest Hwy
Oak Lawn, IL 604533754
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
9921 Southwest Hwy
Oak Lawn, IL 604533754
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Western Michigan Un Homer Stryker School Of Med
2025
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Open Payments general payments, program year 2025
All general payments: $616.10 across 17 records.
By nature of payment
- Food and Beverage: $616.10 across 17 records.
Reporting-company totals (3 largest of 8)
- Aimmune Therapeutics, Inc.: $162.71 across 2 records.
- INTUITIVE SURGICAL, INC.: $132.80 across 1 record.
- Takeda Pharmaceuticals U.S.A., Inc.: $106.14 across 4 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
1 years (graduated 2025)
CMS Doctors and Clinicians data list 2025 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2025
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
May accept Medicare assignment
CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.
Ask the office before your visit. If a clinician does not accept assignment for a service, they can charge up to 15% more than the Medicare-approved amount, and you may be asked to pay the full amount at the visit.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Anna Pfeiffer has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Anna Pfeiffer as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Oak Lawn and Illinois
57 active clinicians are listed under Physician Assistant with a practice address in Oak Lawn, IL (4,929 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Oak Lawn
10.5% of these 57 clinicians have the CMS telehealth indicator.
75.4% of these 57 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2025 only.
Sources: CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 β December 31, 2025): 17 records totaling $616.10.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Aimmune Therapeutics, Inc. |
Food and Beverage
In-kind items and services
|
ZENPEP | General | $136.35 |
| INTUITIVE SURGICAL, INC. |
Food and Beverage
In-kind items and services
|
Da Vinci Surgical System | General | $132.80 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
|
ENTYVIO | General | $34.57 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
TREMFYA | General | $29.03 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
|
ENTYVIO | General | $28.90 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
|
ENTYVIO | General | $27.50 |
| Aimmune Therapeutics, Inc. |
Food and Beverage
In-kind items and services
|
ZENPEP | General | $26.36 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $25.43 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
TREMFYA | General | $24.00 |
| Ardelyx, Inc. |
Food and Beverage
In-kind items and services
|
IBSRELA | General | $23.56 |
| VIVUS LLC |
Food and Beverage
In-kind items and services
|
PANCREAZE | General | $22.55 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
RINVOQ | General | $20.86 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Wegovy | General | $18.69 |
| Ardelyx, Inc. |
Food and Beverage
In-kind items and services
|
IBSRELA | General | $18.37 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
SKYRIZI | General | $17.78 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
|
ENTYVIO | General | $15.17 |
| Ardelyx, Inc. |
Food and Beverage
In-kind items and services
|
IBSRELA | General | $14.18 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-11-25NUCC Taxonomy Code: 363A00000X
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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20260216000527
IL
1254811649
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine - Gastroenterology
Doctor of Medicine (M.D.)
Specialist
Doctor of Medicine (M.D.)
Physician Assistant - Medical
Physician Assistant (Certified)
Specialist
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Specialist
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 9921 SOUTHWEST HWY, OAK LAWN, IL 604533754 (Tel: 8155578069)
Physician Assistant (license number reported to NPPES: IL 085011625)
Registered at 9921 SOUTHWEST HWY, OAK LAWN, IL 604533754 (Tel: 7084995678)
NPI status registered as active in NPPES database
Registered at 1903 W MICHIGAN AVE, KALAMAZOO, MI 490085200 (Tel: 8155578069)
Registered at 1903 W MICHIGAN AVE, KALAMAZOO, MI 490085200 (Tel: 8155578069)
Recorded as ANNA PFEIFFER, PA-C
Physician Assistant
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Oak Lawn
- Bianca Oddo
- Maya Shvarts
- Victoria Gugala, PA-C
- Bridget Adams, PA-C
- Patrycja Strama, PA
- Eva Juszczyk, PA-C
Mailing Address
9921 Southwest Hwy
Oak Lawn, IL 604533754
Phone: 8155578069