Paul Theodore Greiner, MD
Internal Medicine Physician · Mansfield, MA
Paul Theodore Greiner, MD is an internal medicine physician with a practice address in Mansfield, Massachusetts, and NPI 1861466997, issued on Feb 15, 2006. Check the license (Massachusetts 36326, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Paul Theodore Greiner
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 36326 MA
Self-reported in NPPES; status is on the state search - Practice location
- 205 Chauncy Street, Mansfield, MA 02048
- Phone
- (508) 339-2105
- Enumerated
- Feb 15, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (508) 339-5837
- Medicaid ID
- 2032562 MA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 205 Chauncy Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Paul Theodore Greiner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 36326Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Paul Theodore Greiner among 6,825 internal medicine physician records in Massachusetts
Paul Theodore Greiner, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2026 · 64% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 internal medicine physician records list a practice address in Mansfield
They are 6 of the 321 NPPES records with a practice address in Mansfield, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Mansfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Stephanie Favreau, M.D.Mansfield, MA 020481003044256
- Masud Habibullah, MDMansfield, MA 020481285992602
- Cynthia Norton, D.O.Mansfield, MA 020481790910040
- Steven Ross, M.D.Mansfield, MA 020481043409451
- John Shaver, M.D.Mansfield, MA 020481922021229
- Tharwat Hanna, MDMarshfield, MA 020501205815768
- Robert Lonigro, MDMarshfield, MA 020501477514545
- Mark Abensohn, M.D.Medfield, MA 020521225005465
Common questions
What is Paul Theodore Greiner, MD's NPI number?
Paul Theodore Greiner, MD's National Provider Identifier (NPI) is 1861466997, issued on Feb 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Paul Theodore Greiner, MD located?
The NPPES record lists a practice address at 205 Chauncy Street, Mansfield, MA, 02048. Phone: (508) 339-2105. Providers update this record themselves, so call before visiting.
How can I verify Paul Theodore Greiner, MD's license?
NPPES lists Massachusetts license number 36326, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Paul Theodore Greiner, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.