Individual provider

Catherine Chan, M.D.

Gynecology Physician Obstetrics & Gynecology Physician Student in an Organized Health Care Education/Training Program Medicare enrolled

Catherine Chan, M.D. is a Gynecology Physician in Oviedo, FL, registered under NPI 1003279845. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.

Getting there

Here is what surrounds this office in Oviedo, based on OpenStreetMap data collected Sep 15, 2026. Parking is available about 0.46 mi away.

1000 W BROADWAY ST STE 236, Oviedo, FL 32765 Open in Google Maps →

Getting here and what is nearby

Gas station Mobil 238 ft ~1 min

2001 Winter Springs Boulevard, 32765

Directions in Google Maps →

Restaurant Sonic 416 ft ~2 min

1055 Broadway Street, Oviedo 32765

+1-407-366-1069

Website

Directions in Google Maps →

Grocery Publix 725 ft ~3 min

2100 Winter Springs Boulevard, Oviedo 32765

Mo-Sa 07:00-22:00, Su 07:00-21:00

+1 407-366-9740

Website

Directions in Google Maps →

Gas station Chevron 790 ft ~3 min

887 Broadway Street, Oviedo 32765

Directions in Google Maps →

Parking 0.46 mi ~10 min
OpenStreetMap via Overpass · ODbL 800 m radius Updated Sep 15, 2026

Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.

Credentials and Medicare

State licence
LicenceStateSpecialty
ME176560 FL Gynecology Physician primary
304627 NY Obstetrics & Gynecology Physician

Licences are recorded in 2 states: FL, NY. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Obstetrics/gynecology
PAC ID
4183961006

Enrolled in Medicare 2 times, across 2 states:

StateEnrollment IDProvider type
New York I20200716002326 Practitioner - Obstetrics/gynecology
Florida I20251022002817 Practitioner - Obstetrics/gynecology

Medicare enrolment is recorded as approved under the provider type Practitioner - Obstetrics/gynecology. There are 2 separate enrolment records across 2 states (NY, FL). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

Licensed in 2 states

This provider holds licences in 2 states: Florida and New York. The practice address on file is in Oviedo, FL, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

FL Florida practice address
Licence
ME176560
Specialty
Gynecology Physician
Verify with the FL board →
NY New York
Licence
304627
Specialty
Obstetrics & Gynecology Physician
Verify with the NY board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Gynecology covers

A physician who specializes in diagnosis, treatment, and management of patients with gynecologic conditions. NUCC Health Care Provider Taxonomy, code 207VG0400X
Allopathic & Osteopathic Physicians ›Obstetrics & Gynecology ›Gynecology

All registered taxonomy codes

This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
207VG0400X Gynecology Physician Gynecology ME176560 FL primary
207V00000X Obstetrics & Gynecology Physician 304627 NY
390200000X Student in an Organized Health Care Education/Training Program — —

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1003279845 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateMar 30, 2016
Last updatedDec 1, 2025
StatusActive
Sole proprietorYes
GenderFemale
CredentialM.D.
Practice address 1000 W BROADWAY ST STE 236
Oviedo, FL 32765
(321) 841-6060
Fax (321) 841-2442
This record was updated on Dec 1, 2025, which is recent enough that the contact details are likely still accurate.

Number check

1003279845 passes the NPI check digit test The final digit 5 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 0 0 3 2 7 9 8 4
Doubled? — ×2 — ×2 — ×2 — ×2 — ×2 — ×2 — ×2
Value 8 0 8 8 0 2 0 0 3 4 7 9 8 8

Sum = 65 · next multiple of 10 = 70 · check digit = 5 · actual last digit = 5

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1003279845?
NPI 1003279845 is the National Provider Identifier assigned to Catherine Chan, M.D. in Oviedo, FL. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Gynecology cover?
A physician who specializes in diagnosis, treatment, and management of patients with gynecologic conditions.
How do I contact Catherine Chan, M.D.?
The phone number on file with NPPES is (321) 841-6060, last updated Dec 1, 2025. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Catherine Chan, M.D. accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Where do I park when visiting Catherine Chan, M.D.?
Parking is about 0.46 mi from the office. Distances are straight-line estimates from OpenStreetMap, so walking routes may be slightly longer.
Is NPI 1003279845 a valid number?
Yes. 1003279845 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.