Marvin Posner, M.D.
NPI 1285734095 · Neonatal-Perinatal Medicine Physician · Mission Viejo, CA
Marvin Posner, M.D. is a Neonatal-Perinatal Medicine Physician provider in Mission Viejo, CA (NPI 1285734095).
Provider details
- NPI number
- 1285734095
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A44198 (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
- 2006-09-22
- Last updated
- 2009-03-31
Frequently asked questions
- What is Marvin Posner's NPI number?
- Marvin Posner's National Provider Identifier (NPI) is 1285734095, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marvin Posner's specialty?
- Marvin Posner is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marvin Posner located?
- Marvin Posner's practice location on file with NPPES is 27800 Medical Center Rd, Mission Viejo, CA 92691-6410.
- What is Marvin Posner's phone number?
- The practice phone number listed in the NPPES registry for Marvin Posner is (949) 364-1400.
- Is Marvin Posner's NPI active?
- Yes — Marvin Posner's NPI (1285734095) is active in the NPPES registry as of the last update on 2009-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.