THOMAS B FOSTER (MD) – Adolescent Medicine (Internal Medicine) Physician, NPI 1033183371

THOMAS B FOSTER (MD) is a healthcare provider. based in Grand rapids, Michigan. specializing in INTERNAL MEDICINE, PEDIATRIC MEDICINE. They hold the professional credentials MD. They hold a License No. 4301086395 (MI). The NPI Number for THOMAS B FOSTER (MD) is 1033183371

Main info

Male
36 Years Of Experience
Accepts Medicare Assignment
Name
THOMAS B FOSTER (MD)
NPI
1033183371
Phone
Not provided
Address
245 STATE ST SE
Enumeration Date
14 February 2006
Last Update Date
11 September 2012

Doctor Profile

Medical School Name
OTHER
Secondary Phone
6166851350
Graduation Year
1990 (36 years ago)
PAC ID
1153356423
Group Practice PAC ID
4082807961
Professional Enrollment ID
I20051005000876
Address ID
MI493157975BY2373XSWXX403
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness75
Years active:20State licenses:1Digital endpointsOther names

7,218 INTERNAL MEDICINE in MI

Provider Addresses for THOMAS B FOSTER (MD)

  • 245, State Street Southeast, Heritage Hill Historic District, Grand Rapids, Kent County, Michigan, 49503, United States

    STE 1A

    GRAND RAPIDS, MI 49503

    Phone:

    Type: Mailing

  • 2373 64TH ST SW

    STE 1300

    GRAND RAPIDS, MI 49315

    Phone: (616) 685-1350

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2005-10-05

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20051005000876IInternal MedicineMITBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99214Established patient office or other outpatient visit, 30-39 minutes5432$0
99213Established patient office or other outpatient visit, 20-29 minutes2522$0
99215Established patient office or other outpatient visit, 40-54 minutes1612$0
View full utilization report →

Insurance plans in this area (ZIP 49503)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 4082807961View full group profile

Reviews

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Frequently asked questions

What federal number belongs to THOMAS B FOSTER (MD)?
The federal identifier for THOMAS B FOSTER (MD) is NPI 1033183371.
Does this profile mean THOMAS B FOSTER (MD) is currently active?
Yes — THOMAS B FOSTER (MD) appears active in the national provider directory.
Does THOMAS B FOSTER (MD) list a primary specialty?
If you are matching referrals, note Adolescent Medicine (Internal Medicine) Physician for THOMAS B FOSTER (MD). Clinical services aligned with this taxonomy classification.
What location metadata exists for THOMAS B FOSTER (MD)?
The page summarizes Grand Rapids, Michigan for THOMAS B FOSTER (MD); expand the address list for detail.
Does Medicare enrollment show here?
Medicare enrollment screens are separate from the basic NPI extract shown here.

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