Gregory Penning, R.T.(R)(CT)ARRT
NPI 1124767330 · Diagnostic Radiology Physician · Santa Rosa, CA
Gregory Penning, R.T.(R)(CT)ARRT is a Diagnostic Radiology Physician provider in Santa Rosa, CA (NPI 1124767330).
Provider details
- NPI number
- 1124767330
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- R.T.(R)(CT)ARRT
- Sex
- Male
- Sole proprietor
- No
- License
- RHF00097211 (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
4 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
- 2022-06-04
- Last updated
- 2022-06-04
- Certified
- 2022-06-04
Frequently asked questions
- What is Gregory Penning's NPI number?
- Gregory Penning's National Provider Identifier (NPI) is 1124767330, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Penning's specialty?
- Gregory Penning is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Penning located?
- Gregory Penning's practice location on file with NPPES is 30 Mark West Springs Rd, Santa Rosa, CA 95403-1436.
- What is Gregory Penning's phone number?
- The practice phone number listed in the NPPES registry for Gregory Penning is (707) 576-4000.
- Is Gregory Penning's NPI active?
- Yes — Gregory Penning's NPI (1124767330) is active in the NPPES registry as of the last update on 2022-06-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.