Mary Klemm, DO
NPI 1346328432 · Obstetrics & Gynecology Physician · Antioch, CA
Mary Klemm, DO is a Obstetrics & Gynecology Physician provider in Antioch, CA (NPI 1346328432).
Provider details
- NPI number
- 1346328432
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 20A5311 (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
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
- 2006-11-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Klemm's NPI number?
- Mary Klemm's National Provider Identifier (NPI) is 1346328432, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Klemm's specialty?
- Mary Klemm is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Klemm located?
- Mary Klemm's practice location on file with NPPES is 5601 Deer Valley Rd, Antioch, CA 94531-8577.
- What is Mary Klemm's phone number?
- The practice phone number listed in the NPPES registry for Mary Klemm is (925) 813-6500.
- Is Mary Klemm's NPI active?
- Yes — Mary Klemm's NPI (1346328432) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.