Michael Armbruster, MD
NPI 1861812786 · Psychiatry Physician · Smyrna, GA
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Armbruster, MD is a Psychiatry Physician provider in Smyrna, GA (NPI 1861812786).
Provider details
- NPI number
- 1861812786
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 yrs in NPPES registry
- Profile completeness38% of score
83% 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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Clonazepam | 34 |
| Methylphenidate Hcl | 27 |
| Fluoxetine Hcl | 24 |
| Lorazepam | 24 |
| Trazodone Hcl | 21 |
| Mirtazapine | 18 |
| Sertraline Hcl | 17 |
| Escitalopram Oxalate | 15 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-04-17
- Last updated
- 2023-03-14
- Certified
- 2023-03-14
Frequently asked questions
- What is Michael Armbruster's NPI number?
- Michael Armbruster's National Provider Identifier (NPI) is 1861812786, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Armbruster's specialty?
- Michael Armbruster is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Armbruster located?
- Michael Armbruster's practice location on file with NPPES is 3499 S Cobb Dr Se, Smyrna, GA 30080-4170.
- What is Michael Armbruster's phone number?
- The practice phone number listed in the NPPES registry for Michael Armbruster is (404) 456-6482.
- Does Michael Armbruster accept Medicare?
- Michael Armbruster is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Armbruster's NPI active?
- Yes — Michael Armbruster's NPI (1861812786) is active in the NPPES registry as of the last update on 2023-03-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.