Walter Mak, MD
NPI 1265606628 · Diagnostic Radiology Physician · Sacramento, CA
Walter Mak, MD is a Diagnostic Radiology Physician provider in Sacramento, CA (NPI 1265606628).
Provider details
- NPI number
- 1265606628
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A104701 (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
18 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
- 2008-04-16
- Last updated
- 2008-07-07
Frequently asked questions
- What is Walter Mak's NPI number?
- Walter Mak's National Provider Identifier (NPI) is 1265606628, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walter Mak's specialty?
- Walter Mak is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Walter Mak located?
- Walter Mak's practice location on file with NPPES is 4860 Y St, Sacramento, CA 95817-2307.
- What is Walter Mak's phone number?
- The practice phone number listed in the NPPES registry for Walter Mak is (916) 734-3606.
- Is Walter Mak's NPI active?
- Yes — Walter Mak's NPI (1265606628) is active in the NPPES registry as of the last update on 2008-07-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.