THOMAS P. KAEGI (M.D.) – Internal Medicine Physician, NPI 1578552121

THOMAS P. KAEGI (M.D.) is a healthcare provider. based in Concord, Massachusetts. specializing in Internal Medicine Physician. They hold the professional credentials M.D.. They hold a License No. 79435 (MA). The NPI Number for THOMAS P. KAEGI (M.D.) is 1578552121

Main info

Male
35 Years Of Experience
Accepts Medicare Assignment
Name
THOMAS P. KAEGI (M.D.)
NPI
1578552121
Phone
(978) 287-9350
Address
330 BAKER AVE
Enumeration Date
17 October 2005
Last Update Date
16 November 2020

Doctor Profile

Medical School Name
UNIVERSITY OF ROCHESTER SCHOOL OF MEDICINE AND DENTISTRY
Secondary Phone
9782879300
Graduation Year
1991 (35 years ago)
PAC ID
6901798784
Group Practice PAC ID
4789588641
Professional Enrollment ID
I20050502001172

Contacts

Secure Messaging
tkaegimd179176@direct.atrius.masshiway.net
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness85
Years active:20State licenses:1Other namesUpdated within 12 months

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Provider Addresses for THOMAS P. KAEGI (M.D.)

  • Harvard Vanguard Medical Associates, 330, Baker Avenue, West Concord, Concord, Middlesex County, Massachusetts, 01742, United States

    CONCORD, MA 017422129

    Phone: (978) 287-9350

    Fax: (978) 287-9358

    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: 2005-05-02

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
I20050502001172IInternal MedicineMATBD

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
36415Insertion of needle into vein for collection of blood sample475276$0
99214Established patient office or other outpatient visit, 30-39 minutes344207$0
80061Blood test, lipids (cholesterol and triglycerides)239221$0
99213Established patient office or other outpatient visit, 20-29 minutes201149$0
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit198198$0
View full utilization report →

Insurance plans in this area (ZIP 01742)

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Provider's Procedures

THOMAS P. KAEGI (M.D.) performs procedures in Internal Medicine Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
INTERNAL MEDICINEMA81002Urinalysis, manual test1313
INTERNAL MEDICINEMA90670Pneumococcal vaccine for injection into muscle2323

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: 4789588641View full group profile
NameSpecialtyState
-MA
Family PracticeMA
D E R M A T O L O G YMA
Emergency MedicineMA
Internal Medicine, Cardiovascular Disease (Cardiology)MA
-MA
O B S T E T R I C S/ G Y N E C O L O G YMA
-MA
Internal MedicineMA
O T O L A R Y N G O L O G YMA

Reviews

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Frequently asked questions

How do I look up THOMAS P. KAEGI (M.D.) by NPI?
Use NPI 1578552121 when you need to reference THOMAS P. KAEGI (M.D.) in forms, claims, or directories.
Is THOMAS P. KAEGI (M.D.) currently active in the NPI registry?
CMS-published data lists THOMAS P. KAEGI (M.D.) as an active registrant.
Does THOMAS P. KAEGI (M.D.) list a primary specialty?
If you are matching referrals, note Internal Medicine Physician for THOMAS P. KAEGI (M.D.). Clinical services aligned with this taxonomy classification.
What location shows for THOMAS P. KAEGI (M.D.)?
We surface Concord, Massachusetts for THOMAS P. KAEGI (M.D.) based on available NPPES addresses.
How can I contact THOMAS P. KAEGI (M.D.)?
Phone or fax may appear on the official NPI record when supplied — verify before relying on them.

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