NPPES file of Aug 9, 2026

Calvin Andrew Stone McMillan, MD

Family Medicine Physician · West Warwick, RI

Calvin Andrew Stone McMillan, MD is a family medicine physician with a practice address in West Warwick, Rhode Island, and NPI 1124768601, issued on Mar 31, 2022. Check the license (Rhode Island MD20740, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; 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
1124768601
Name
Calvin Andrew Stone McMillan
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
MD20740 RI
LP05762 RI
Self-reported in NPPES; status is on the state search
Practice location
186 Providence St, West Warwick, RI 02893
Phone
(401) 615-2800
Enumerated
Mar 31, 2022
Record last updated
Sep 2, 2025
Medicare enrollment
Enrolled (PECOS I20250922002164); accepts Medicare assignment
Medical or professional school
Pennsylvania State University College Of Medicine, 2022
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 186 Providence St

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

  1. Ivonne Abad BeltranFamily Nurse Practitioner1174455828
  2. Kimberly Ainsworth, FNPFamily Nurse Practitioner1508492208
  3. Kelly Albro, FNP-BCNurse Practitioner1053033191
  4. Lexsey Almeida, LMHCMental Health Counselor1427614502
  5. Ashlee Austin, LICSWClinical Social Worker1568183739
  6. Eric Bai, MDInternal Medicine Physician1376292938

Verify Calvin Andrew Stone McMillan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
    Search for license MD20740
    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 Rhode Island 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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70% fewer Medicare Part D claims than the average family medicine physician in 2024

1,052 Medicare Part D claims for 103 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 36 claims were for opioids.

  1. Calvin McMillan1,052
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium109 claims
  2. Lisinopril59 claims
  3. Albuterol Sulfate Hfa51 claims
  4. Famotidine49 claims
  5. Amlodipine Besylate48 claims
  6. Metformin Hcl37 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.

Bills Medicare through one group practice

  1. Thundermist Health CenterWest Warwick, RI

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

Calvin Andrew Stone McMillan among 475 family medicine physician records in Rhode Island

Calvin Andrew Stone McMillan, MD is one of 475 family medicine physician records with a practice address in Rhode Island. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 83% of them.

  • NPI issued2022 · 83% of these records are older, 12% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2022 · median 2008 among the 282 with a school on file
  • Record last updated2025 · 41% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

22 family medicine physician records list a practice address in West Warwick

They are 22 of the 309 NPPES records with a practice address in West Warwick, and 475 family medicine physician records in Rhode Island.

The 8 family medicine physician records with the nearest ZIP codes

  1. Benjamin Adler, M.D.West Warwick, RI 028931538515606
  2. Jennifer Buckley, MDWest Warwick, RI 028931811125081
  3. Max Cohen, DOWest Warwick, RI 028931720409519
  4. Caitlin Gillooly, MDWest Warwick, RI 028931497275465
  5. Arnold Goldberg, MDWest Warwick, RI 028931265415194
  6. Meghan Grant, DOWest Warwick, RI 028931861710394
  7. Marla Hansel, M.D.West Warwick, RI 028931770878134
  8. Daniel Harris, MDWest Warwick, RI 028931841678547

Common questions

What is Calvin Andrew Stone McMillan, MD's NPI number?

Calvin Andrew Stone McMillan, MD's National Provider Identifier (NPI) is 1124768601, issued on Mar 31, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Calvin Andrew Stone McMillan, MD located?

The NPPES record lists a practice address at 186 Providence St, West Warwick, RI, 02893. Phone: (401) 615-2800. Providers update this record themselves, so call before visiting.

How can I verify Calvin Andrew Stone McMillan, MD's license?

NPPES lists Rhode Island license number MD20740, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Calvin Andrew Stone McMillan, MD prescribe under Medicare Part D?

In 2024, Calvin Andrew Stone McMillan, MD had 1,052 Medicare Part D claims for 103 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.