DR. TIMOTHY JOSEPH BRENNAN (MD) – Family Medicine Physician, NPI 1376556944

DR. TIMOTHY JOSEPH BRENNAN (MD) is a healthcare provider. based in Aptos, California. specializing in FAMILY PRACTICE. They hold the professional credentials MD. They hold a License No. G78406 (CA). The NPI Number for DR. TIMOTHY JOSEPH BRENNAN (MD) is 1376556944

Main info

Male
34 Years Of Experience
Accepts Medicare Assignment
Name
DR. TIMOTHY JOSEPH BRENNAN (MD)
NPI
1376556944
Phone
(831) 688-4307
Address
3370 VIENNA DR
Enumeration Date
14 August 2006
Last Update Date
15 December 2021

Doctor Profile

Medical School Name
UNIVERSITY OF CINCINNATI COLLEGE OF MEDICINE
Secondary Phone
8317288250
Graduation Year
1992 (34 years ago)
PAC ID
8729039003
Group Practice PAC ID
8729984729
Professional Enrollment ID
I20050203000478
Address ID
CA950764809WA204XXSTXX400

Contacts

SOAP Endpoint
https://careepicwest.kp.org:14430/Interconnect-prodcalgateway/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ncalceq
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness85
Years active:19State licenses:1Other namesUpdated within 12 months

13,194 FAMILY PRACTICE in CA

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Provider Addresses for DR. TIMOTHY JOSEPH BRENNAN (MD)

  • Soquel Drive & Vienna Drive, Soquel Drive, Aptos Center, Seacliff, Santa Cruz County, California, 95003, United States

    APTOS, CA 950032826

    Phone: (831) 688-4307

    Type: Mailing

  • 10561, Merritt Street, Castroville, Monterey County, California, 95012, United States

    CASTROVILLE, CA 950123310

    Phone: (831) 633-1514

    Fax: (831) 633-0311

    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: 2005-02-03

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
I20050203000478IFamily PracticeCATBD

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.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 95003)

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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: 8729984729View full group profile
NameSpecialtyState
Family PracticeCA
Family PracticeCA
Marriage And Family TherapistCA
-CA
Interventional Pain Management, Family PracticeCA
Family PracticeCA
Family PracticeCA
C H I R O P R A C T I CCA
O B S T E T R I C S/ G Y N E C O L O G YCA
Family Practice, Geriatric MedicineCA

Reviews

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Frequently asked questions

What is DR. TIMOTHY JOSEPH BRENNAN (MD)'s NPI number?
DR. TIMOTHY JOSEPH BRENNAN (MD)'s NPI is 1376556944 — the number used across U.S. healthcare to identify this provider.
Would DR. TIMOTHY JOSEPH BRENNAN (MD) appear as active to a payer?
You can treat DR. TIMOTHY JOSEPH BRENNAN (MD) as active for directory purposes; confirm clinical privileges separately.
What expertise is attributed to DR. TIMOTHY JOSEPH BRENNAN (MD)?
DR. TIMOTHY JOSEPH BRENNAN (MD)'s specialty line reads Family Medicine Physician. Clinical services aligned with this taxonomy classification.
What locale is associated with DR. TIMOTHY JOSEPH BRENNAN (MD)?
Directory geography for DR. TIMOTHY JOSEPH BRENNAN (MD) centers on Aptos, California.
Does inactive status remove historical data?
Historical rows can remain visible after status changes — read the dates carefully.

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