Vivien Pan, M.D.
NPI 1902903164 · Neonatal-Perinatal Medicine Physician · Mission Viejo, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Vivien Pan, M.D. is a Neonatal-Perinatal Medicine Physician provider in Mission Viejo, CA (NPI 1902903164).
Provider details
- NPI number
- 1902903164
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A71280 (CA)
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 tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-20
- Last updated
- 2025-10-30
- Certified
- 2025-10-30
Frequently asked questions
- What is Vivien Pan's NPI number?
- Vivien Pan's National Provider Identifier (NPI) is 1902903164, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vivien Pan's specialty?
- Vivien Pan is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Vivien Pan located?
- Vivien Pan's practice location on file with NPPES is 27800 Medical Center Rd, Mission Viejo, CA 92691-6410.
- What is Vivien Pan's phone number?
- The practice phone number listed in the NPPES registry for Vivien Pan is (949) 364-4428.
- Does Vivien Pan accept Medicare?
- Vivien Pan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Vivien Pan's NPI active?
- Yes — Vivien Pan's NPI (1902903164) is active in the NPPES registry as of the last update on 2025-10-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.