Lucas A.g. Keith, MD
Internal Medicine Physician · Marion, NY
Lucas A.g. Keith, MD is an internal medicine physician with a practice address in Marion, New York, and NPI 1639490550, issued on Jun 15, 2010. Check the license (New York 292399, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Lucas A.g. Keith
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 292399 NY
54151 MN
Self-reported in NPPES; status is on the state search - Practice location
- 3669 Countryside LN, Marion, NY 14505
- Phone
- (315) 926-7733
- Enumerated
- Jun 15, 2010
- Record last updated
- Jun 30, 2023
- Fax
- (315) 926-0731
- Medicaid ID
- ENROLLED MN
- Medicare enrollment
- Enrolled (PECOS I20180524002419); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 2010
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 3669 Countryside LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Theresa Martin, MDFamily Medicine Physician1497133342
- Laura Moore, RPA-CMedical Physician Assistant1467466268
- Teresa O'Connor, FNPFamily Nurse Practitioner1447775424
- Melissa Pullin, FNPFamily Nurse Practitioner1710086442
- Eliza Weis, FNP-CRegistered Nurse1972923902
Verify Lucas A.g. Keith in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 292399Check 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
8,188 Medicare Part D claims for 585 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 302 claims were for opioids.
Most prescribed
- Atorvastatin Calcium468 claims
- Lisinopril408 claims
- Amlodipine Besylate343 claims
- Levothyroxine Sodium229 claims
- Pantoprazole Sodium222 claims
- Omeprazole188 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): 79.3 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).
Bills Medicare through one group practice
- Strong Medical GroupMarion, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lucas A.g. Keith among 12,067 internal medicine physician records in New York
Lucas A.g. Keith, MD is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 63% of them.
- NPI issued2010 · 63% of these records are older, 34% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2010 · median 2002 among the 7,221 with a school on file
- Record last updated2023 · 61% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 internal medicine physician record lists a practice address in Marion
They are 1 of the 49 NPPES records with a practice address in Marion, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Marion → Internal Medicine Physician nationwide →
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Common questions
What is Lucas A.g. Keith, MD's NPI number?
Lucas A.g. Keith, MD's National Provider Identifier (NPI) is 1639490550, issued on Jun 15, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Lucas A.g. Keith, MD located?
The NPPES record lists a practice address at 3669 Countryside LN, Marion, NY, 14505. Phone: (315) 926-7733. Providers update this record themselves, so call before visiting.
How can I verify Lucas A.g. Keith, MD's license?
NPPES lists New York license number 292399, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Lucas A.g. Keith, MD prescribe under Medicare Part D?
In 2024, Lucas A.g. Keith, MD had 8,188 Medicare Part D claims for 585 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Lucas A.g. Keith, MD's MIPS final score?
The 2023 MIPS final score is 79.3 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.