Winko Zan, M.D.
Family Medicine Physician · Catonsville, MD
Winko Zan, M.D. is a family medicine physician with a practice address in Catonsville, Maryland, and NPI 1518190016, issued on Aug 31, 2009. Check the license (Maryland D0069594, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Winko Zan
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- D0069594 MD
Self-reported in NPPES; status is on the state search - Practice location
- 6333 Baltimore National Pike, Catonsville, MD 21228
- Phone
- (443) 514-1361
- Enumerated
- Aug 31, 2009
- Record last updated
- Apr 14, 2022
- Medicare enrollment
- Enrolled (PECOS I20100608000760); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,912 in Maryland → Look up another NPI →
Also registered at 6333 Baltimore National Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- James Donaldson, PA-CPhysician Assistant1598157596
- Sandra Jones, PA-CPhysician Assistant1235149816
- Motti Mulleta, M.D.Internal Medicine Physician1568676070
- Shamane Onwudiachi, PA-CPhysician Assistant1780944892
- Todd Phillips, MDFamily Medicine Physician1679569164
Verify Winko Zan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0069594Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average family medicine physician in 2024
1,071 Medicare Part D claims for 732 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Doxycycline Hyclate220 claims
- Methylprednisolone103 claims
- Sulfamethoxazole-Trimethoprim60 claims
- Mupirocin58 claims
- Amoxicillin47 claims
- Diclofenac Sodium43 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): 61.7 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
- Patient First Maryland Medical Group PLLCOwings Mills, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Winko Zan among 1,912 family medicine physician records in Maryland
Winko Zan, M.D. is one of 1,912 family medicine physician records with a practice address in Maryland. 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 2009, is newer than 63% of them.
- NPI issued2009 · 63% of these records are older, 35% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2007 · median 2004 among the 1,141 with a school on file
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 family medicine physician records list a practice address in Catonsville
They are 15 of the 1,023 NPPES records with a practice address in Catonsville, and 1,912 family medicine physician records in Maryland.
All 1,912 in Maryland → Every provider in Catonsville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Mohammed Ahmed, M.D.Catonsville, MD 212281851340319
- William Dando, M.D.Catonsville, MD 212281871570358
- Eveit Gobrial, M.D.Catonsville, MD 212281790739910
- Victor Madrid, MDCatonsville, MD 212281336108745
- Elekwachi Nwaogbo, MDCatonsville, MD 212281326137662
- Todd Phillips, MDCatonsville, MD 212281679569164
- Mohammad Saleem, MDCatonsville, MD 212281376524256
- Armel Simo, M.D.Catonsville, MD 212281376708321
Common questions
What is Winko Zan, M.D.'s NPI number?
Winko Zan, M.D.'s National Provider Identifier (NPI) is 1518190016, issued on Aug 31, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Winko Zan, M.D. located?
The NPPES record lists a practice address at 6333 Baltimore National Pike, Catonsville, MD, 21228. Phone: (443) 514-1361. Providers update this record themselves, so call before visiting.
How can I verify Winko Zan, M.D.'s license?
NPPES lists Maryland license number D0069594, 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 Winko Zan, M.D. prescribe under Medicare Part D?
In 2024, Winko Zan, M.D. had 1,071 Medicare Part D claims for 732 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Winko Zan, M.D.'s MIPS final score?
The 2023 MIPS final score is 61.7 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.