Phyllis Owusu-Griffin, M.D.
Internal Medicine Physician · West Springfield, MA
Phyllis Owusu-Griffin, M.D. is an internal medicine physician with a practice address in West Springfield, Massachusetts, and NPI 1427251438, issued on Jun 7, 2007. Check the license (Massachusetts 244654, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Phyllis Owusu-Griffin
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 244654 MA
Self-reported in NPPES; status is on the state search - Practice location
- 46 Daggett Dr, West Springfield, MA 01089
- Phone
- (413) 794-9110
- Enumerated
- Jun 7, 2007
- Record last updated
- Nov 15, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (413) 794-9116
- Medicare enrollment
- Enrolled (PECOS I20100909000696); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 46 Daggett Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Glenn Alli, MDInternal Medicine Physician1639180268
- Kathryn Beyer, PAPhysician Assistant1578093027
- Theodore Ingis, M.D.Ophthalmology Physician1316908288
- Suzanne Jorey, M.D.Internal Medicine Physician1730157298
- Natasha Krahn, LICSWClinical Social Worker1407108020
- Sonia Krotkov, RPA-CPhysician Assistant1932245958
Verify Phyllis Owusu-Griffin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 244654Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average internal medicine physician in 2024
8,148 Medicare Part D claims for 622 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 413 claims were for opioids.
Most prescribed
- Atorvastatin Calcium448 claims
- Amlodipine Besylate405 claims
- Lisinopril367 claims
- Omeprazole318 claims
- Gabapentin282 claims
- Levothyroxine Sodium267 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
- Baystate Medical Practices IncSpringfield, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Phyllis Owusu-Griffin among 6,825 internal medicine physician records in Massachusetts
Phyllis Owusu-Griffin, M.D. 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 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 45% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2007 · median 2004 among the 4,103 with a school on file
- Record last updated2016 · 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).
10 internal medicine physician records list a practice address in West Springfield
They are 10 of the 1,214 NPPES records with a practice address in West Springfield, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in West Springfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Glenn Alli, MDWest Springfield, MA 010891639180268
- Reda Ishak, M.D.West Springfield, MA 010891366428013
- Susan Johnson, MDWest Springfield, MA 010891114955481
- Suzanne Jorey, M.D.West Springfield, MA 010891730157298
- Abdul Khadra, M.D.West Springfield, MA 010891194778159
- Apolinario Pastrana, MDWest Springfield, MA 010891053467951
- David Popkin, MDWest Springfield, MA 010891720099351
- Sanjeevan Randhawa, M.D.W Springfield, MA 010891902913569
Common questions
What is Phyllis Owusu-Griffin, M.D.'s NPI number?
Phyllis Owusu-Griffin, M.D.'s National Provider Identifier (NPI) is 1427251438, issued on Jun 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Phyllis Owusu-Griffin, M.D. located?
The NPPES record lists a practice address at 46 Daggett Dr, West Springfield, MA, 01089. Phone: (413) 794-9110. Providers update this record themselves, so call before visiting.
How can I verify Phyllis Owusu-Griffin, M.D.'s license?
NPPES lists Massachusetts license number 244654, 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.
How much does Phyllis Owusu-Griffin, M.D. prescribe under Medicare Part D?
In 2024, Phyllis Owusu-Griffin, M.D. had 8,148 Medicare Part D claims for 622 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.