Charlotte Nagel, M.D.
NPI 1457344335 · Ophthalmology Physician · Concord, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charlotte Nagel, M.D. is a Ophthalmology Physician provider in Concord, CA (NPI 1457344335).
Provider details
- NPI number
- 1457344335
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A51683 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2005-08-25
- Last updated
- 2008-11-10
Frequently asked questions
- What is Charlotte Nagel's NPI number?
- Charlotte Nagel's National Provider Identifier (NPI) is 1457344335, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charlotte Nagel's specialty?
- Charlotte Nagel is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Charlotte Nagel located?
- Charlotte Nagel's practice location on file with NPPES is 1955 Monument Blvd, Concord, CA 94520-3873.
- What is Charlotte Nagel's phone number?
- The practice phone number listed in the NPPES registry for Charlotte Nagel is (925) 689-1800.
- Does Charlotte Nagel accept Medicare?
- Charlotte Nagel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charlotte Nagel's NPI active?
- Yes — Charlotte Nagel's NPI (1457344335) is active in the NPPES registry as of the last update on 2008-11-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.