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Karen Herzog, MD
NPI 1417989856 · Diagnostic Radiology Physician · Alameda, CA
Karen Herzog, MD is a Diagnostic Radiology Physician provider in Alameda, CA (NPI 1417989856).
Provider details
- NPI number
- 1417989856
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A233480 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
2070 Clinton Ave
Alameda, CA 94501-4320
Phone: (510) 522-4146
Fax: (510) 522-4954
Street-level locationGet directions
Mailing address
Po Box 2957
Alameda, CA 94501-0957
Registry dates
- Enumerated
- 2006-07-07
- Last updated
- 2007-07-08
Frequently asked questions
- What is Karen Herzog's NPI number?
- Karen Herzog's National Provider Identifier (NPI) is 1417989856, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Herzog's specialty?
- Karen Herzog is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Herzog located?
- Karen Herzog's practice location on file with NPPES is 2070 Clinton Ave, Alameda, CA 94501-4320.
- What is Karen Herzog's phone number?
- The practice phone number listed in the NPPES registry for Karen Herzog is (510) 522-4146.
- Is Karen Herzog's NPI active?
- Yes — Karen Herzog's NPI (1417989856) 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.