Gregory Hammett, D.O.
NPI 1508266727 · Hospitalist Physician · Santa Barbara, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Hammett, D.O. is a Hospitalist Physician provider in Santa Barbara, CA (NPI 1508266727).
Provider details
- NPI number
- 1508266727
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 20A14761 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
999 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 413 | $123 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 243 | $179 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 155 | $81 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 112 | $120 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 59 | $135 |
| Advance Care Planning, First 30 Minutes99497 | 17 |
Practice location
Mailing address
Additional practice locations (2)
- 230 Prospect Pl Ste 340bCoronado, CA 92118-1991Phone: (619) 522-4000
- 2100 Powell St Ste 400Emeryville, CA 94608-1872Phone: (510) 851-7501Fax: (510) 851-7446
Registry dates
- Enumerated
- 2014-08-25
- Last updated
- 2023-03-06
- Certified
- 2023-03-06
Frequently asked questions
- What is Gregory Hammett's NPI number?
- Gregory Hammett's National Provider Identifier (NPI) is 1508266727, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Hammett's specialty?
- Gregory Hammett is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Hammett located?
- Gregory Hammett's practice location on file with NPPES is 317 W Pueblo St, Santa Barbara, CA 93105-4365.
- What is Gregory Hammett's phone number?
- The practice phone number listed in the NPPES registry for Gregory Hammett is (805) 681-7500.
- Does Gregory Hammett accept Medicare?
- Gregory Hammett is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Hammett's NPI active?
- Yes — Gregory Hammett's NPI (1508266727) is active in the NPPES registry as of the last update on 2023-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.