Guannan Zhang
NPI 1801473665 · Anatomic Pathology & Clinical Pathology Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Guannan Zhang is a Anatomic Pathology & Clinical Pathology Physician provider in Baltimore, MD (NPI 1801473665).
Provider details
- NPI number
- 1801473665
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- D0104148 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$47 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 1611 Nw 12th AveMiami, FL 33136-1005Phone: (305) 585-7400
- 1800 Orleans StBaltimore, MD 21287-0010Phone: (410) 955-5000
Registry dates
- Enumerated
- 2021-03-26
- Last updated
- 2025-06-17
- Certified
- 2025-06-17
Frequently asked questions
- What is Guannan Zhang's NPI number?
- Guannan Zhang's National Provider Identifier (NPI) is 1801473665, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Guannan Zhang's specialty?
- Guannan Zhang is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Guannan Zhang located?
- Guannan Zhang's practice location on file with NPPES is 4940 Eastern Ave, Baltimore, MD 21224-2735.
- What is Guannan Zhang's phone number?
- The practice phone number listed in the NPPES registry for Guannan Zhang is (410) 550-0100.
- Does Guannan Zhang accept Medicare?
- Guannan Zhang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Guannan Zhang's NPI active?
- Yes — Guannan Zhang's NPI (1801473665) is active in the NPPES registry as of the last update on 2025-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.