David W. Kossoff, M.D.
Specialist · Frederick, MD
David W. Kossoff, M.D. is a specialist with a practice address in Frederick, Maryland, and NPI 1629152582, issued on Oct 25, 2006. Check the license (Maryland D0054121, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- David W. Kossoff
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- D0054121 MD
Self-reported in NPPES; status is on the state search - Practice location
- 110 Thomas Johnson Dr Ste 335, Frederick, MD 21702
- Phone
- (301) 624-5566
- Enumerated
- Oct 25, 2006
- Record last updated
- Sep 17, 2025
- Fax
- (301) 624-5542
- Medicaid ID
- 133102701 MD
- Medicare enrollment
- Enrolled (PECOS I20050405000630); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 1992
- Entity
- Type 1 · individual
Also registered at 110 Thomas Johnson Dr Ste 335
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lindsay BittoFamily Nurse Practitioner1972904845
- Pilin Francis, DOGastroenterology Physician1669967592
- Arash Zarrin, DOGastroenterology Physician1407351729
Verify David W. Kossoff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license D0054121Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average specialist in 2024
60 Medicare Part D claims for 32 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium28 claims
- Omeprazole14 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): 80.6 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: $939.34
13 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 5,844 providers of this specialty with any payment received $4,760.79 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
- David W. Kossoff, M.D., PAFrederick, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Specialist providers in Maryland
There are 938 specialist records in Maryland.
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Common questions
What is David W. Kossoff, M.D.'s NPI number?
David W. Kossoff, M.D.'s National Provider Identifier (NPI) is 1629152582, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David W. Kossoff, M.D. located?
The NPPES record lists a practice address at 110 Thomas Johnson Dr Ste 335, Frederick, MD, 21702. Phone: (301) 624-5566. Providers update this record themselves, so call before visiting.
How can I verify David W. Kossoff, M.D.'s license?
NPPES lists Maryland license number D0054121, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does David W. Kossoff, M.D. prescribe under Medicare Part D?
In 2024, David W. Kossoff, M.D. had 60 Medicare Part D claims for 32 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is David W. Kossoff, M.D.'s MIPS final score?
The 2023 MIPS final score is 80.6 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.