THOMAS AUSTIN MELGAR (M.D.) – Internal Medicine Physician, NPI 1154390334

THOMAS AUSTIN MELGAR (M.D.) is a healthcare provider. based in Kalamazoo, Michigan. specializing in INTERNAL MEDICINE, PEDIATRIC MEDICINE. They hold the professional credentials M.D.. They hold a License No. 430152330 (MI). The NPI Number for THOMAS AUSTIN MELGAR (M.D.) is 1154390334

Main info

Male
39 Years Of Experience
Accepts Medicare Assignment
Name
THOMAS AUSTIN MELGAR (M.D.)
NPI
1154390334
Phone
Not provided
Address
1000 OAKLAND DR
Enumeration Date
17 March 2006
Last Update Date
24 May 2012

Doctor Profile

Medical School Name
STATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Secondary Phone
2693374347
Graduation Year
1987 (39 years ago)
PAC ID
3072642602
Group Practice PAC ID
7517113954
Professional Enrollment ID
I20100520000213
Address ID
MI490081282KA1000XDRXX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience63
Completeness75
Years active:20State licenses:2Digital endpointsOther names

7,218 INTERNAL MEDICINE in MI

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Provider Addresses for THOMAS AUSTIN MELGAR (M.D.)

  • 1000, Oakland Drive, Kalamazoo, Kalamazoo County, Michigan, 49008, United States

    KALAMAZOO, MI 490081282

    Phone:

    Mailing address matches the actual address.

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: 2010-05-20

PECOS data refreshed: 2026-06-15

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
I20100520000213IInternal 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
99213Established patient office or other outpatient visit, 20-29 minutes4037$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes3714$0
View full utilization report →

Insurance plans in this area (ZIP 49008)

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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: 7517113954View full group profile
NameSpecialtyState
Clinical PsychologistMI
-MI
Family Practice, Obstetrics/GynecologyMI
-MI
Infectious DiseaseMI
P S Y C H I A T R YMI
P S Y C H I A T R YMI
Internal MedicineMI
-MI
Clinical PsychologistMI

Reviews

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Frequently asked questions

Can I cross-check THOMAS AUSTIN MELGAR (M.D.) using NPI 1154390334?
NPI 1154390334 belongs to THOMAS AUSTIN MELGAR (M.D.); compare other details if you need extra assurance.
Is there an active status for THOMAS AUSTIN MELGAR (M.D.)?
For scheduling context, THOMAS AUSTIN MELGAR (M.D.) is shown as active in the registry.
What expertise is attributed to THOMAS AUSTIN MELGAR (M.D.)?
THOMAS AUSTIN MELGAR (M.D.)'s specialty line reads Internal Medicine Physician. Clinical services aligned with this taxonomy classification.
What locale is associated with THOMAS AUSTIN MELGAR (M.D.)?
Directory geography for THOMAS AUSTIN MELGAR (M.D.) centers on Kalamazoo, Michigan.
When was this NPI issued?
Enumeration for THOMAS AUSTIN MELGAR (M.D.) is noted as March 17, 2006 where the registry provides it.

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