F Karl Gregorius M.D., Inc.
NPI 1720399389 · Neurological Surgery Physician · Stockton, CA
F Karl Gregorius M.D., Inc. is a Neurological Surgery Physician organization in Stockton, CA (NPI 1720399389).
Provider details
- NPI number
- 1720399389
- Entity type
- Organization
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Frederick Gregorius, Owner/President(209) 943-0305
- License
- G15246 (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
15 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
- 2010-06-29
- Last updated
- 2010-06-29
Frequently asked questions
- What is F Karl Gregorius M.D., Inc.'s NPI number?
- F Karl Gregorius M.D., Inc.'s National Provider Identifier (NPI) is 1720399389, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is F Karl Gregorius M.D., Inc.?
- F Karl Gregorius M.D., Inc. is classified in the NPPES registry as Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is F Karl Gregorius M.D., Inc. located?
- F Karl Gregorius M.D., Inc.'s practice location on file with NPPES is 2209 N California St, Stockton, CA 95204-5503.
- What is F Karl Gregorius M.D., Inc.'s phone number?
- The practice phone number listed in the NPPES registry for F Karl Gregorius M.D., Inc. is (209) 943-0305.
- Who is the authorized official for F Karl Gregorius M.D., Inc.?
- The authorized official listed on F Karl Gregorius M.D., Inc.'s NPPES record is Frederick Gregorius, Owner/President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is F Karl Gregorius M.D., Inc.'s NPI active?
- Yes — F Karl Gregorius M.D., Inc.'s NPI (1720399389) is active in the NPPES registry as of the last update on 2010-06-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.