Jacqueline Marie Kowitz, MD
Internal Medicine Physician · Washington, DC
Jacqueline Marie Kowitz, MD is an internal medicine physician with a practice address in Washington, District of Columbia, and NPI 1407505571, issued on Mar 23, 2022. Check the license on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Jacqueline Marie Kowitz
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 0116037314 VA
Self-reported in NPPES; status is on the state search - Practice location
- 2333 Ontario RD NW, Washington, DC 20009
- Phone
- (202) 483-8196
- Enumerated
- Mar 23, 2022
- Record last updated
- Feb 24, 2026
- Medicare enrollment
- Enrolled (PECOS I20260325003096); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 901 in District of Columbia → Look up another NPI →
Also registered at 2333 Ontario RD NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jacqueline Marie Kowitz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average internal medicine physician in 2024
427 Medicare Part D claims for 81 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Atorvastatin Calcium45 claims
- Amlodipine Besylate18 claims
- Losartan Potassium18 claims
- Metformin Hcl17 claims
- Lisinopril-Hydrochlorothiazide16 claims
- Famotidine13 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.
Jacqueline Marie Kowitz among 901 internal medicine physician records in District of Columbia
Jacqueline Marie Kowitz, MD is one of 901 internal medicine physician records with a practice address in District of Columbia. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 94% of them.
- NPI issued2022 · 94% of these records are older, 3% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2022 · median 2008 among the 513 with a school on file
- Record last updated2026 · 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 District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
891 internal medicine physician records list a practice address in Washington
They are 891 of the 45,857 NPPES records with a practice address in Washington, and 901 internal medicine physician records in District of Columbia.
All 901 in District of Columbia → Every provider in Washington → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Robert Ball, MDWashington, DC 200091326052051
- Leslie Fenton, MDWashington, DC 200091396880357
- Bruce Furness, M.D.Washington, DC 200091518084920
- Ashley Harris, M.D.Washington, DC 200091851406904
- Patrik JohanssonWashington, DC 200091699834630
- Pamela Marks, M.D.Washington, DC 200091457329203
Common questions
What is Jacqueline Marie Kowitz, MD's NPI number?
Jacqueline Marie Kowitz, MD's National Provider Identifier (NPI) is 1407505571, issued on Mar 23, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Jacqueline Marie Kowitz, MD located?
The NPPES record lists a practice address at 2333 Ontario RD NW, Washington, DC, 20009. Phone: (202) 483-8196. Providers update this record themselves, so call before visiting.
How can I verify Jacqueline Marie Kowitz, MD's license?
Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jacqueline Marie Kowitz, MD prescribe under Medicare Part D?
In 2024, Jacqueline Marie Kowitz, MD had 427 Medicare Part D claims for 81 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.