Gilbert Harrison, MD
NPI 1487942306 · Internal Medicine Physician · Sacaton, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gilbert Harrison, MD is a Internal Medicine Physician provider in Sacaton, AZ (NPI 1487942306).
Provider details
- NPI number
- 1487942306
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 49464 (AZ)
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
14 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
605 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 539 | $92 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 66 | $63 |
Typical Medicare-allowed amounts for these services range $63–$92 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 55 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 229 | 64 |
| Lisinopril | 156 | 36 |
| Gabapentin | 140 | 27 |
| Pantoprazole Sodium | 106 | 27 |
| Amlodipine Besylate | 99 | 24 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 94 | 27 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-07-12
- Last updated
- 2014-07-24
Frequently asked questions
- What is Gilbert Harrison's NPI number?
- Gilbert Harrison's National Provider Identifier (NPI) is 1487942306, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gilbert Harrison's specialty?
- Gilbert Harrison is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gilbert Harrison located?
- Gilbert Harrison's practice location on file with NPPES is 483 W. Seed Farm Rd., Sacaton, AZ 85147.
- What is Gilbert Harrison's phone number?
- The practice phone number listed in the NPPES registry for Gilbert Harrison is (602) 528-1200.
- Does Gilbert Harrison accept Medicare?
- Gilbert Harrison is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gilbert Harrison's NPI active?
- Yes — Gilbert Harrison's NPI (1487942306) is active in the NPPES registry as of the last update on 2014-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.