John Mueller, MD
NPI 1497821300 · Psychiatry Physician · Flagstaff, AZ
John Mueller, MD is a Psychiatry Physician provider in Flagstaff, AZ (NPI 1497821300).
Provider details
- NPI number
- 1497821300
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 25350 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Trazodone Hcl | 30 |
| Quetiapine Fumarate | 29 |
| Clonazepam | 28 |
| Bupropion Hclbrand: Bupropion Xl | 27 |
| Escitalopram Oxalate | 27 |
| Duloxetine Hcl | 25 |
| Lamotrigine | 24 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 2920 N 4th StFlagstaff, AZ 86004-1816Phone: (928) 522-1152
Registry dates
- Enumerated
- 2006-11-24
- Last updated
- 2026-05-02
- Certified
- 2026-05-02
Frequently asked questions
- What is John Mueller's NPI number?
- John Mueller's National Provider Identifier (NPI) is 1497821300, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mueller's specialty?
- John Mueller is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is John Mueller located?
- John Mueller's practice location on file with NPPES is 1515 N San Francisco St, Flagstaff, AZ 86001.
- What is John Mueller's phone number?
- The practice phone number listed in the NPPES registry for John Mueller is (928) 214-0012.
- Is John Mueller's NPI active?
- Yes — John Mueller's NPI (1497821300) is active in the NPPES registry as of the last update on 2026-05-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.