James L. Griffin, MD
Internal Medicine Physician · Columbia, MD
James L. Griffin, MD is an internal medicine physician with a practice address in Columbia, Maryland, and NPI 1649373150, issued on Sep 7, 2006. Check the license (Maryland D41422, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- James L. Griffin
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D41422 MD
Self-reported in NPPES; status is on the state search - Practice location
- 6350 Stevens Forest RD Ste 102, Columbia, MD 21046
- Phone
- (443) 259-3780
- Enumerated
- Sep 7, 2006
- Record last updated
- May 31, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (443) 259-3775
- Medicaid ID
- 122221000 MD
- Medicare enrollment
- Enrolled (PECOS I20141015000264); accepts Medicare assignment
- Medical or professional school
- Rutgers New Jersey Medical School, 1983
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 6350 Stevens Forest RD Ste 102
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katherine GillFamily Nurse Practitioner1659074391
- Daliah Halboni, FNPFamily Nurse Practitioner1013638741
- Janna Spranza, C.R.N.P.Family Nurse Practitioner1982695201
- Dhara Vaishnav, CRNPPrimary Care Nurse Practitioner1437415254
Verify James L. Griffin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D41422Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
270 Medicare Part D claims for 112 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Irbesartan11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 86.8 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).
Industry payments in 2024: $50.57
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. 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 one group practice
- Johns Hopkins Community Physicians, IncBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
93 internal medicine physician records list a practice address in Columbia
They are 93 of the 6,690 NPPES records with a practice address in Columbia, and 3,904 internal medicine physician records in Maryland.
All 93 in Columbia → All 3,904 in Maryland → Every provider in Columbia →
Other internal medicine physician records in Maryland
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- Ghulam Abbas, MDFrederick, MD1477658045
- Shamima Abbas, MDKensington, MD1750445896
- Nourelhuda Abbas Hamed, MDSilver Spring, MD1699339473
- Arsalan Abbasi, MDWestminster, MD1942762604
- Hamdi AbdeenGaithersburg, MD1245972413
- Mukemil Abdella, M.D.Glenn Dale, MD1871603381
- Suzan Abdo, MDClarksville, MD1588631824
- Madeeha Abdul GhaffarElkton, MD1194276063
Common questions
What is James L. Griffin, MD's NPI number?
James L. Griffin, MD's National Provider Identifier (NPI) is 1649373150, issued on Sep 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James L. Griffin, MD located?
The NPPES record lists a practice address at 6350 Stevens Forest RD Ste 102, Columbia, MD, 21046. Phone: (443) 259-3780. Providers update this record themselves, so call before visiting.
How can I verify James L. Griffin, MD's license?
NPPES lists Maryland license number D41422, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James L. Griffin, MD prescribe under Medicare Part D?
In 2024, James L. Griffin, MD had 270 Medicare Part D claims for 112 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is James L. Griffin, MD's MIPS final score?
The 2023 MIPS final score is 86.8 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.