Astrid Haefner, M.D.
NPI 1083993729 · Internal Medicine Physician · Santa Clara, CA
Astrid Haefner, M.D. is a Internal Medicine Physician provider in Santa Clara, CA (NPI 1083993729).
Provider details
- NPI number
- 1083993729
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A117443 (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
14 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
- 2011-08-11
- Last updated
- 2013-07-17
Frequently asked questions
- What is Astrid Haefner's NPI number?
- Astrid Haefner's National Provider Identifier (NPI) is 1083993729, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Astrid Haefner's specialty?
- Astrid Haefner is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Astrid Haefner located?
- Astrid Haefner's practice location on file with NPPES is 700 Lawrence Expy, Santa Clara, CA 95051-5173.
- What is Astrid Haefner's phone number?
- The practice phone number listed in the NPPES registry for Astrid Haefner is (408) 851-1000.
- Is Astrid Haefner's NPI active?
- Yes — Astrid Haefner's NPI (1083993729) is active in the NPPES registry as of the last update on 2013-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.