Gregory G. Allen, D.O.
Internal Medicine Physician · Cranston, RI
Gregory G. Allen, D.O. is an internal medicine physician with a practice address in Cranston, Rhode Island, and NPI 1043217250, issued on Jul 1, 2005. Check the license (Rhode Island DO 00582, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Gregory G. Allen
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- DO 00582 RI
Self-reported in NPPES; status is on the state search - Practice location
- 1681 Cranston St, Cranston, RI 02920
- Phone
- (401) 946-8446
- Enumerated
- Jul 1, 2005
- Record last updated
- Aug 28, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (401) 946-8340
- Medicare enrollment
- Enrolled (PECOS I20050610000848); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 2002
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,033 in Rhode Island → Look up another NPI →
Also registered at 1681 Cranston St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anna Fulton, RNPAdult Health Nurse Practitioner1407059538
- Frank Maggiacomo, D.O.Internal Medicine Physician1629075981
- Suzanne Pacheco, ATCAthletic Trainer1962575829
Verify Gregory G. Allen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license DO 00582Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average internal medicine physician in 2024
7,276 Medicare Part D claims for 316 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 317 claims were for opioids.
Most prescribed
- Atorvastatin Calcium453 claims
- Lisinopril240 claims
- Omeprazole238 claims
- Levothyroxine Sodium201 claims
- Amlodipine Besylate187 claims
- Alprazolam177 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: $929.01
50 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Prospect Chartercare Physicians LLCCranston, RI
- Vmd Primary Providers OF Rhode Island PCCumberland, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory G. Allen among 1,033 internal medicine physician records in Rhode Island
Gregory G. Allen, D.O. is one of 1,033 internal medicine physician records with a practice address in Rhode Island. 80% 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, 90% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2002 · median 2006 among the 590 with a school on file
- Record last updated2007 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
38 internal medicine physician records list a practice address in Cranston
They are 38 of the 1,348 NPPES records with a practice address in Cranston, and 1,033 internal medicine physician records in Rhode Island.
All 1,033 in Rhode Island → Every provider in Cranston → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Stephen Beaupre, MDCranston, RI 029201619994217
- Douglas Blecker, MDCranston, RI 029201538106240
- Joseph Campbell, MDCranston, RI 029201891780573
- James Cardi, M.D.Cranston, RI 029201104890292
- Yul Ejnes, MDCranston, RI 029201679568802
- Hao Huang, M.D.Cranston, RI 029201902826316
- Wilhelmina Japlit, N MDCranston, RI 029201679681431
- Antioan Kardous, MDCranston, RI 029201538142252
Common questions
What is Gregory G. Allen, D.O.'s NPI number?
Gregory G. Allen, D.O.'s National Provider Identifier (NPI) is 1043217250, issued on Jul 1, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gregory G. Allen, D.O. located?
The NPPES record lists a practice address at 1681 Cranston St, Cranston, RI, 02920. Phone: (401) 946-8446. Providers update this record themselves, so call before visiting.
How can I verify Gregory G. Allen, D.O.'s license?
NPPES lists Rhode Island license number DO 00582, 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 Gregory G. Allen, D.O. prescribe under Medicare Part D?
In 2024, Gregory G. Allen, D.O. had 7,276 Medicare Part D claims for 316 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.