Guannan Zhang
Anatomic Pathology & Clinical Pathology Physician · Baltimore, MD
Guannan Zhang is an anatomic pathology & clinical pathology physician with a practice address in Baltimore, Maryland, and NPI 1801473665, issued on Mar 26, 2021. Check the license (Maryland D0104148, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Guannan Zhang
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- D0104148 MD
Self-reported in NPPES; status is on the state search - Practice location
- 4940 Eastern Ave, Baltimore, MD 21224
- Phone
- (410) 550-0100
- Enumerated
- Mar 26, 2021
- Record last updated
- Jul 22, 2026
- Medicare enrollment
- Enrolled (PECOS I20250625001740); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 357 in Maryland → Look up another NPI →
Also registered at 4940 Eastern Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Anas AbdullahStudent in an Organized Health Care Education/Training Program1184040917
- Asma Abeer, PA-CMedical Physician Assistant1386356442
- Mona Abraham, MDStudent in an Organized Health Care Education/Training Program1245807395
- Sherifatu Abu, MDInternal Medicine Physician1093372922
Verify Guannan Zhang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0104148Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $47.35
1 payment: food and beverage; the largest payer was Celgene Corporation. The 2,607 providers of this specialty with any payment received $3,565.00 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
- Johns Hopkins UniversityBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Guannan Zhang among 357 anatomic pathology & clinical pathology physician records in Maryland
Guannan Zhang is one of 357 anatomic pathology & clinical pathology physician records with a practice address in Maryland. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 95% of them.
- NPI issued2021 · 95% of these records are older, 2% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated2012 · median 2003 among the 191 with a school on file
- Record last updated2026 · 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 207ZP0102X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in Maryland
There are 357 anatomic pathology & clinical pathology physician records in Maryland.
All 357 in Maryland → Every provider in Baltimore → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Serena Bagnasco, M.D.Baltimore, MD 212241003871880
- Karen Carroll, M.D.Baltimore, MD 212241568410439
- Ivo Francischetti, M.D., PH.D.Baltimore, MD 212241841687944
- Edward Gabrielson, M.D.Baltimore, MD 212241770521569
- Tiffany Javadi, MDBaltimore, MD 212241437731908
- Chengbao Liu, M.D.Baltimore, MD 212241437417458
- Zahra Maleki, MDBaltimore, MD 212241144284183
- Nicholas Rogers, M.D.Baltimore, MD 212241093165086
Common questions
What is Guannan Zhang's NPI number?
Guannan Zhang's National Provider Identifier (NPI) is 1801473665, issued on Mar 26, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Guannan Zhang located?
The NPPES record lists a practice address at 4940 Eastern Ave, Baltimore, MD, 21224. Phone: (410) 550-0100. Providers update this record themselves, so call before visiting.
How can I verify Guannan Zhang's license?
NPPES lists Maryland license number D0104148, 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.
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.