Robert Stoffer, MD
NPI 1538123427 · Internal Medicine Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Stoffer, MD is a Internal Medicine Physician provider in Phoenix, AZ (NPI 1538123427).
Provider details
- NPI number
- 1538123427
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 10355 (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
20 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
350 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) |
|---|---|---|
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 216 | $60 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 52 | $88 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 52 | $124 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 19 | $16 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 11 | $125 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lisinopril | 109 | 43 |
| Losartan Potassium | 88 | 36 |
| Rosuvastatin Calcium | 85 | 35 |
| Amlodipine Besylate | 79 | 32 |
| Atorvastatin Calcium | 76 | 34 |
| Metformin Hcl | 73 | 29 |
| Pravastatin Sodium | 69 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-17
- Last updated
- 2023-10-20
- Certified
- 2023-10-20
Frequently asked questions
- What is Robert Stoffer's NPI number?
- Robert Stoffer's National Provider Identifier (NPI) is 1538123427, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Stoffer's specialty?
- Robert Stoffer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Stoffer located?
- Robert Stoffer's practice location on file with NPPES is 3201 W Peoria Ave, Phoenix, AZ 85029-4608.
- What is Robert Stoffer's phone number?
- The practice phone number listed in the NPPES registry for Robert Stoffer is (602) 993-1773.
- Does Robert Stoffer accept Medicare?
- Robert Stoffer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Stoffer's NPI active?
- Yes — Robert Stoffer's NPI (1538123427) is active in the NPPES registry as of the last update on 2023-10-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.