NPPES file of Aug 9, 2026

Brian Michael Estabrook, PA-C

Medical Physician Assistant · Sacramento, CA

Brian Michael Estabrook, PA-C is a medical physician assistant with a practice address in Sacramento, California, and NPI 1407842933, issued on Sep 20, 2005. Check the license (California PA16825, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1407842933
Name
Brian Michael Estabrook
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
PA16825 CA
Self-reported in NPPES; status is on the state search
Practice location
3000 Q St FL 3, Sacramento, CA 95816
Phone
(916) 733-3400
Enumerated
Sep 20, 2005
Record last updated
Jul 10, 2025
Fax
(916) 733-5940
Medicare enrollment
Enrolled (PECOS I20090803000380); accepts Medicare assignment
Medical or professional school
Stanford University School Of Medicine, 2003
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3000 Q St FL 3

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Margherita Aikman, PHARMDAmbulatory Care Pharmacist1881972669
  2. Mutaal Akhter, MDHospitalist Physician1184263576
  3. Zaida AlbarracinInternal Medicine Physician1467879304
  4. Tierney Allen, M.D.Hospitalist Physician1598129264
  5. Felipe Arredondo, MDInternal Medicine Physician1407352883
  6. Nitu Aryal, M.D.Internal Medicine Physician1083870968

Verify Brian Michael Estabrook in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PA16825
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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72% more Medicare Part D claims than the average medical physician assistant in 2024

1,973 Medicare Part D claims for 564 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. 143 claims were for opioids.

  1. Brian Estabrook1,973
  2. Specialty average1,148

Most prescribed

  1. Atorvastatin Calcium142 claims
  2. Lisinopril93 claims
  3. Amlodipine Besylate83 claims
  4. Metoprolol Succinate83 claims
  5. Hydrocodone-Acetaminophen69 claims
  6. Carvedilol54 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $90.38

3 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Brian Estabrook$90.38
  2. Specialty average$1,055.00

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Dignity Health Medical FoundationFolsom, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Brian Michael Estabrook among 3,376 medical physician assistant records in California

Brian Michael Estabrook, PA-C is one of 3,376 medical physician assistant records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 98% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2003 · median 2012 among the 1,347 with a school on file
  • Record last updated2025 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Physician Assistant providers in California

There are 3,376 medical physician assistant records in California.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Alvaro Aguirre, PASacramento, CA 958161700994597
  2. Linda Chiang, PASacramento, CA 958161376631911
  3. Gary Dunaye, P.A.Sacramento, CA 958161033324827
  4. Linda Lobianco, PA-CSacramento, CA 958161841362514
  5. Erich Madero-Schmidt, PASacramento, CA 958161225298961
  6. Madelyn Milton, PA-CSacramento, CA 958161336122431
  7. Van Nguyen, PA-CSacramento, CA 958161700838315
  8. Godwin OkungbowaSacramento, CA 958161104835966

Common questions

What is Brian Michael Estabrook, PA-C's NPI number?

Brian Michael Estabrook, PA-C's National Provider Identifier (NPI) is 1407842933, issued on Sep 20, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Brian Michael Estabrook, PA-C located?

The NPPES record lists a practice address at 3000 Q St FL 3, Sacramento, CA, 95816. Phone: (916) 733-3400. Providers update this record themselves, so call before visiting.

How can I verify Brian Michael Estabrook, PA-C's license?

NPPES lists California license number PA16825, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Brian Michael Estabrook, PA-C prescribe under Medicare Part D?

In 2024, Brian Michael Estabrook, PA-C had 1,973 Medicare Part D claims for 564 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.