NPPES file of Aug 9, 2026

Samuel Rouleau

Critical Care Medicine (Internal Medicine) Physician · Fairfield, CA

Samuel Rouleau is a critical care medicine (internal medicine) physician with a practice address in Fairfield, California, and NPI 1851982326, issued on Jan 28, 2021. Check the license (California A182584, as entered in NPPES) on the Medical Board of California; 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
1851982326
Name
Samuel Rouleau
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License number
A182584 CA
Self-reported in NPPES; status is on the state search
Practice location
101 Bodin Cir, Fairfield, CA 94535
Phone
(707) 423-3000
Enumerated
Jan 28, 2021
Record last updated
Aug 5, 2026
Medicare enrollment
Enrolled (PECOS I20251219003265); may accept Medicare assignment
Medical or professional school
Mayo Medical School, 2021
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 101 Bodin Cir

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

  1. Angela Aguayo, MSWSocial Worker1225504897
  2. Artemio Alanis, PHARMDOncology Pharmacist1396513982
  3. Traci Allen, RNCase Management Registered Nurse1669292132
  4. Rachel Anderson, MDAnesthesiology Physician1942730072
  5. Eugene Asabor, DDSDentist1568300242
  6. Savannah Bahls, DOMilitary Health Care Provider1619764008

Verify Samuel Rouleau in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A182584
    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
Open the California license search

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97% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024

22 Medicare Part D claims for 17 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D.

  1. Samuel Rouleau22
  2. Specialty average696

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.

Samuel Rouleau among 723 critical care medicine (internal medicine) physician records in California

Samuel Rouleau is one of 723 critical care medicine (internal medicine) physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 98% of them.

  • NPI issued2021 · 98% of these records are older, under 1% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2021 · median 2005 among the 559 with a school on file
  • Record last updated2026 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in California

There are 723 critical care medicine (internal medicine) physician records in California.

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. David Anderson, D.O.Travis Afb, CA 945351265791768
  2. Shea Boles, MDTravis Afb, CA 945351093274193
  3. Daniel LeeFairfield, CA 945351366076580
  4. Talayeh Rezayat, D.O.Fairfield, CA 945351841511409
  5. Carmencita Agcaoili, M.D.Fremont, CA 945381285652396
  6. Rohit Arora, M.D.Fremont, CA 945381508086885
  7. Omeed Azizirad, M.D.Fremont, CA 945381386707651
  8. Wendy Hsu, MDFremont, CA 945381750563011

Common questions

What is Samuel Rouleau's NPI number?

Samuel Rouleau's National Provider Identifier (NPI) is 1851982326, issued on Jan 28, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Samuel Rouleau located?

The NPPES record lists a practice address at 101 Bodin Cir, Fairfield, CA, 94535. Phone: (707) 423-3000. Providers update this record themselves, so call before visiting.

How can I verify Samuel Rouleau's license?

NPPES lists California license number A182584, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Samuel Rouleau prescribe under Medicare Part D?

In 2024, Samuel Rouleau had 22 Medicare Part D claims for 17 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.