David Mach, DO
NPI 1497945158 · Psychiatry Physician · Fergus Falls, MN
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1497945158
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 49182 (MN)
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
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 18 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Clonazepam | 52 |
| Quetiapine Fumarate | 51 |
| Escitalopram Oxalate | 25 |
| Alprazolam | 24 |
| Ziprasidone Hcl | 23 |
| Gabapentin | 23 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 21 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 18 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-07-30
- Last updated
- 2020-04-07
- Certified
- 2020-04-07
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.