NPPES file of Aug 9, 2026

Mark Richard Brown, FNP-C

Family Nurse Practitioner · Vacaville, CA

Mark Richard Brown, FNP-C is a family nurse practitioner with a practice address in Vacaville, California, and NPI 1346053048, issued on Jan 28, 2025. Check the license (California 95033749, 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
1346053048
Name
Mark Richard Brown
Credential
FNP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
95033749 CA
Self-reported in NPPES; status is on the state search
Practice location
421 Nut Tree RD, Vacaville, CA 95687
Phone
(707) 624-7500
Enumerated
Jan 28, 2025
Record last updated
May 12, 2026
Medicare enrollment
Enrolled (PECOS I20260410003325); accepts Medicare assignment
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 421 Nut Tree RD

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

  1. Treesa Antony, DNP, FNP-BC, RN-BSNFamily Nurse Practitioner1003379306
  2. Kulbir Bajwa, M.D.Internal Medicine Physician1912000126
  3. Mary Cargill, NPNurse Practitioner1922642784
  4. Ana Cherry, M.D.Family Medicine Physician1679656573
  5. Garth Davis, MDInternal Medicine Physician1770535692
  6. Ali Hassani, MDInternal Medicine Physician1487818373

Verify Mark Richard Brown 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 95033749
    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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Industry payments in 2024: $42.92

2 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Brown$42.92
  2. Specialty average$650.95

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. Northbay Health Medical FoundationVacaville, CA

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

Mark Richard Brown among 16,966 family nurse practitioner records in California

Mark Richard Brown, FNP-C is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 90% of them.

  • NPI issued2025 · 90% of these records are older, 3% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2024 · median 2019 among the 6,793 with a school on file
  • Record last updated2026 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

36 family nurse practitioner records list a practice address in Vacaville

They are 36 of the 1,903 NPPES records with a practice address in Vacaville, and 16,966 family nurse practitioner records in California.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Victoria Anthony, FNPVacaville, CA 956871255522140
  2. Marissa Boyd, MSN, RN, FNPVacaville, CA 956871750548608
  3. Marina Bradley, ARNPVacaville, CA 956871710311337
  4. Sherman Champen, RN, MSN, FNPVacaville, CA 956871528250321
  5. Melissa Croumie Hall, FNPVacaville, CA 956871316018088
  6. Diemthanh Do, NPVacaville, CA 956871205066776
  7. Mary GarofaloVacaville, CA 956871255731915
  8. Jienelle Herndon, FNP-CVacaville, CA 956871629443262

Common questions

What is Mark Richard Brown, FNP-C's NPI number?

Mark Richard Brown, FNP-C's National Provider Identifier (NPI) is 1346053048, issued on Jan 28, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Mark Richard Brown, FNP-C located?

The NPPES record lists a practice address at 421 Nut Tree RD, Vacaville, CA, 95687. Phone: (707) 624-7500. Providers update this record themselves, so call before visiting.

How can I verify Mark Richard Brown, FNP-C's license?

NPPES lists California license number 95033749, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.