Gary Grimes, MD
NPI 1922172089 · Family Medicine Physician · Palmdale, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary Grimes, MD is a Family Medicine Physician provider in Palmdale, CA (NPI 1922172089).
Provider details
- NPI number
- 1922172089
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A45278 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
4,224 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 Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 1,581 | $51 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 1,557 | $81 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, at Least 10 Minutes99307 | 530 | $42 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 127 | $135 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 125 | $109 |
| Hospital Discharge Day Management, 30 Minutes Or Less |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 190 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 652 | 129 |
| Amlodipine Besylate | 517 | 99 |
| Metformin Hcl | 383 | 76 |
| Gabapentin | 281 | 66 |
| Losartan Potassium | 267 | 62 |
| Omeprazole | 259 | 56 |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-20
- Last updated
- 2010-12-03
Frequently asked questions
- What is Gary Grimes's NPI number?
- Gary Grimes's National Provider Identifier (NPI) is 1922172089, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Grimes's specialty?
- Gary Grimes is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Grimes located?
- Gary Grimes's practice location on file with NPPES is 39749 Makin Ave, Palmdale, CA 93551-2940.
- What is Gary Grimes's phone number?
- The practice phone number listed in the NPPES registry for Gary Grimes is (661) 267-0777.
- Does Gary Grimes accept Medicare?
- Gary Grimes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gary Grimes's NPI active?
- Yes — Gary Grimes's NPI (1922172089) is active in the NPPES registry as of the last update on 2010-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.