Nathan Dennison, DO
NPI 1871098756 · Internal Medicine Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Dennison, DO is a Internal Medicine Physician provider in Phoenix, AZ (NPI 1871098756).
Provider details
- NPI number
- 1871098756
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 009133 (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
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
361 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 | 161 | $124 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 64 | $126 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 48 | $87 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 44 | $175 |
| Hemoglobin A1c Level83036 | 27 | $10 |
| Administration of Influenza Virus VaccineG0008 | 17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 90 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 339 | 111 |
| Amlodipine Besylate | 211 | 66 |
| Levothyroxine Sodium | 209 | 52 |
| Lisinopril | 176 | 46 |
| Metformin Hcl | 175 | 46 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 145 | 41 |
Practice location
Mailing address
Additional practice locations (1)
- 350 W Thomas RdPhoenix, AZ 85013-4409Phone: (602) 406-5590Fax: (602) 406-7170
Registry dates
- Enumerated
- 2018-03-24
- Last updated
- 2024-12-13
- Certified
- 2024-12-13
Frequently asked questions
- What is Nathan Dennison's NPI number?
- Nathan Dennison's National Provider Identifier (NPI) is 1871098756, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Dennison's specialty?
- Nathan Dennison is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nathan Dennison located?
- Nathan Dennison's practice location on file with NPPES is 500 W Thomas Rd Ste 900a, Phoenix, AZ 85013-4223.
- What is Nathan Dennison's phone number?
- The practice phone number listed in the NPPES registry for Nathan Dennison is (602) 406-3540.
- Does Nathan Dennison accept Medicare?
- Nathan Dennison is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Dennison's NPI active?
- Yes — Nathan Dennison's NPI (1871098756) is active in the NPPES registry as of the last update on 2024-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.