Mary Joyce Gan, M.D.
NPI 1831345180 · Pediatric Endocrinology Physician · Winter Park, FL
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Joyce Gan, M.D. is a Pediatric Endocrinology Physician provider in Winter Park, FL (NPI 1831345180).
Provider details
- NPI number
- 1831345180
- Entity type
- Individual
- Primary specialty
- Pediatric Endocrinology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 35.146558 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
17 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 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.
$135 across 2 records (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 (1)
- 9500 Euclid AveCleveland, OH 44195-6151Phone: (216) 444-5437
Registry dates
- Enumerated
- 2008-08-18
- Last updated
- 2023-04-24
- Certified
- 2023-04-24
Frequently asked questions
- What is Mary Joyce Gan's NPI number?
- Mary Joyce Gan's National Provider Identifier (NPI) is 1831345180, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Joyce Gan's specialty?
- Mary Joyce Gan is listed in the NPPES registry with a primary specialty of Pediatric Endocrinology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Joyce Gan located?
- Mary Joyce Gan's practice location on file with NPPES is 1801 Lee Rd Ste 170, Winter Park, FL 32789-2167.
- What is Mary Joyce Gan's phone number?
- The practice phone number listed in the NPPES registry for Mary Joyce Gan is (407) 896-2901.
- Does Mary Joyce Gan accept Medicare?
- Mary Joyce Gan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Joyce Gan's NPI active?
- Yes — Mary Joyce Gan's NPI (1831345180) is active in the NPPES registry as of the last update on 2023-04-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.