Michael Lock, MD
NPI 1154357564 · Radiation Oncology Physician · Mission Viejo, CA
Michael Lock, MD is a Radiation Oncology Physician provider in Mission Viejo, CA (NPI 1154357564).
Provider details
- NPI number
- 1154357564
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- G49709 (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
20 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
- 2006-06-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is Michael Lock's NPI number?
- Michael Lock's National Provider Identifier (NPI) is 1154357564, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Lock's specialty?
- Michael Lock is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Lock located?
- Michael Lock's practice location on file with NPPES is 27800 Medical Center Rd, Mission Viejo, CA 92691-6410.
- What is Michael Lock's phone number?
- The practice phone number listed in the NPPES registry for Michael Lock is (949) 364-9120.
- Is Michael Lock's NPI active?
- Yes — Michael Lock's NPI (1154357564) 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.