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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.

MICHAEL FOSTER
NPI 1891105771
Internal Medicine in Philadelphia, PA

Active since May 01, 2014PECOS Enrolled
1101 CHESTNUT ST FL 9, PHILADELPHIA, PA 19107(215) 955-5050 Get Directions Write a Review

NPPES record last updated: July 28, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Michael Foster NPPES

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

MICHAEL FOSTER (NPI 1891105771) is an individual internal medicine provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD494779) and active in the NPI registry since May 2014. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1891105771
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMICHAEL FOSTER
Location Address1101 CHESTNUT ST FL 9Philadelphia, PA 19107-3612
Mailing Address1101 Chestnut St Fl 9Philadelphia, PA 19107-3612 · (215) 955-5050
Phone(215) 955-5050
Sole ProprietorYes
Enumeration DateMay 1, 2014
Last NPPES UpdateJuly 28, 2026
NPPES CertifiedJuly 28, 2026
✔ NPI 1891105771 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in PA · MD494779
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1101 CHESTNUT ST FL 9, Philadelphia, PA 19107
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael Foster is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19107 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
$137.17 typical visit price
range $59.88 – $180.99
Typical copayment $34.29 (range $14.97 – $45.24)
Most-billed visit code 99204
Established Patient
$105.21 typical visit price
range $19.30 – $147.29
Typical copayment $26.30 (range $4.82 – $36.82)
Most-billed visit code 99214
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 10

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

HANS FRIEDRICH STABENAU M.D., PH.D.
Internal Medicine (Clinical Cardiac Electrophysiology)
1101 CHESTNUT ST FL 9
PHILADELPHIA, PA 19107
Philadelphia County (215) 955-5050
DR. MADELEINE BARKER MD
Internal Medicine (Interventional Cardiology)
1101 CHESTNUT ST FL 9
PHILADELPHIA, PA 19107
Philadelphia County (215) 955-5050
MARIE DROOGAN CRNP
Nurse Practitioner (Acute Care)
1101 CHESTNUT ST FL 9
PHILADELPHIA, PA 19107
Philadelphia County (215) 955-2050
JANET L CAI M.D.
Internal Medicine (Cardiovascular Disease)
1101 CHESTNUT ST FL 9
PHILADELPHIA, PA 19107
Philadelphia County (215) 955-5050
MARGO GRAYBILL PHARMD
Pharmacist
1101 CHESTNUT ST FL 9
PHILADELPHIA, PA 19107
Philadelphia County (215) 503-1807
MATTHEW SOLOMON DELFINER DO
Internal Medicine (Advanced Heart Failure and Transplant Cardiology)
1101 CHESTNUT ST FL 9
PHILADELPHIA, PA 19107
Philadelphia County (215) 955-5050
DANIELLA MOLONEY
Nurse Practitioner (Acute Care)
1101 CHESTNUT ST FL 9
PHILADELPHIA, PA 19107
Philadelphia County (215) 955-5050
YAQUB BETZ
Internal Medicine (Cardiovascular Disease)
1101 CHESTNUT ST FL 9
PHILADELPHIA, PA 19107
Philadelphia County (215) 955-5050

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 Michael Foster's NPI number?

The NPI number for Michael Foster is 1891105771. It was assigned to this individual provider in the NPPES registry on May 1, 2014.

Where is Michael Foster located?

Michael Foster practices at 1101 Chestnut St Fl 9, Philadelphia, PA 19107. The listed phone number is (215) 955-5050.

What is Michael Foster's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Michael Foster enrolled in Medicare?

Yes. Michael Foster is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Michael Foster was last updated on July 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.