John Sauer, FNP
NPI 1588136998 · Family Nurse Practitioner · Ajo, AZ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Sauer, FNP is a Family Nurse Practitioner provider in Ajo, AZ (NPI 1588136998).
Provider details
- NPI number
- 1588136998
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Male
- Sole proprietor
- Yes
- License
- 220392 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 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
13 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) |
|---|---|---|
| Hemoglobin A1c Level83036 | 13 | $10 |
Typical Medicare-allowed amounts for these services range $10–$10 (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 · 78 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 234 | 79 |
| Levothyroxine Sodium | 189 | 62 |
| Lisinopril | 168 | 58 |
| Amlodipine Besylate | 127 | 44 |
| Omeprazole | 101 | 38 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 92 | 29 |
Practice location
Mailing address
Additional practice locations (1)
- 183 W Apache Trl Ste B109Apache Junction, AZ 85120-3425Phone: (480) 618-0945
Registry dates
- Enumerated
- 2018-12-23
- Last updated
- 2025-08-07
- Certified
- 2025-08-07
Frequently asked questions
- What is John Sauer's NPI number?
- John Sauer's National Provider Identifier (NPI) is 1588136998, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Sauer's specialty?
- John Sauer is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Sauer located?
- John Sauer's practice location on file with NPPES is 410 N Malacate St, Ajo, AZ 85321-2254.
- What is John Sauer's phone number?
- The practice phone number listed in the NPPES registry for John Sauer is (520) 387-5651.
- Does John Sauer accept Medicare?
- John Sauer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Sauer's NPI active?
- Yes — John Sauer's NPI (1588136998) is active in the NPPES registry as of the last update on 2025-08-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.