Leonard Michael Zullo, M.D.
Adult Medicine Physician · Baltimore, MD
Leonard Michael Zullo, M.D. is an adult medicine physician with a practice address in Baltimore, Maryland, and NPI 1740272525, issued on Aug 18, 2005. Check the license (Maryland D0011312, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Leonard Michael Zullo
- Credential
- M.D.
- Primary taxonomy
- Adult Medicine Physician 207QA0505X
- License number
- D0011312 MD
Self-reported in NPPES; status is on the state search - Practice location
- 1665 Merritt Blvd, Baltimore, MD 21222
- Phone
- (410) 282-5330
- Enumerated
- Aug 18, 2005
- Record last updated
- Oct 29, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (410) 282-2924
- Entity
- Type 1 · individual
8 nearest adult medicine physician records → All 59 in Maryland → Look up another NPI →
Verify Leonard Michael Zullo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0011312Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average adult medicine physician in 2024
33 Medicare Part D claims, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D.
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.
Leonard Michael Zullo among 59 adult medicine physician records in Maryland
Leonard Michael Zullo, M.D. is one of 59 adult medicine physician records with a practice address in Maryland. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileNo · 51% of these records are
- Record last updated2007 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Medicine Physician providers in Maryland
There are 59 adult medicine physician records in Maryland.
All 59 in Maryland → Every provider in Baltimore → Adult Medicine Physician nationwide →
The 8 adult medicine physician records with the nearest ZIP codes
- Mike LyonsMiddle River, MD 212201528112281
- Franklin AddisonBaltimore, MD 212171124099163
- Alexis Cruz, MDHalethorpe, MD 212271194306639
- Ally Krannebitter, DNP, FNP-CBaltimore, MD 212271497322515
- Wanda Simmons Clemmons, MDBaltimore, MD 212391275615775
- Karen Konkel, M.D.Towson, MD 212041477592244
- Estelle Carter, PA-CBaltimore, MD 212011124202379
- Daniel Howard, MDBaltimore, MD 212011497793673
Common questions
What is Leonard Michael Zullo, M.D.'s NPI number?
Leonard Michael Zullo, M.D.'s National Provider Identifier (NPI) is 1740272525, issued on Aug 18, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Leonard Michael Zullo, M.D. located?
The NPPES record lists a practice address at 1665 Merritt Blvd, Baltimore, MD, 21222. Phone: (410) 282-5330. Providers update this record themselves, so call before visiting.
How can I verify Leonard Michael Zullo, M.D.'s license?
NPPES lists Maryland license number D0011312, 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 Leonard Michael Zullo, M.D. prescribe under Medicare Part D?
In 2024, Leonard Michael Zullo, M.D. had 33 Medicare Part D claims; the average among adult medicine physician prescribers was 3,002. 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.