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Steven Hamman, M.D.
NPI 1306289004 · Internal Medicine Physician · Los Altos, CA
Steven Hamman, M.D. is a Internal Medicine Physician provider in Los Altos, CA (NPI 1306289004).
Provider details
- NPI number
- 1306289004
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- GFE30708 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(78/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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
585 Deodara Dr
Los Altos, CA 94024-7140
Phone: (650) 903-0843
Fax: (206) 201-6783
Street-level locationGet directions
Mailing address
Po Box 4639
Mountain View, CA 94040-0639
Registry dates
- Enumerated
- 2013-04-11
- Last updated
- 2013-04-11
Frequently asked questions
- What is Steven Hamman's NPI number?
- Steven Hamman's National Provider Identifier (NPI) is 1306289004, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Hamman's specialty?
- Steven Hamman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Hamman located?
- Steven Hamman's practice location on file with NPPES is 585 Deodara Dr, Los Altos, CA 94024-7140.
- What is Steven Hamman's phone number?
- The practice phone number listed in the NPPES registry for Steven Hamman is (650) 903-0843.
- Is Steven Hamman's NPI active?
- Yes — Steven Hamman's NPI (1306289004) is active in the NPPES registry as of the last update on 2013-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.