Troy Stiles, D.O.
NPI 1437122207 · Psychiatry Physician · Billings, MT
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Troy Stiles, D.O. is a Psychiatry Physician provider in Billings, MT (NPI 1437122207).
Provider details
- NPI number
- 1437122207
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 02002661A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
914 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 447 | $123 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 256 | $69 |
| Assessment of Emotional Or Behavioral Problems96127 | 88 | $5 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 60 | $14 |
| Psychotherapy With Evaluation and Management Visit, 45 Minutes90836 | 45 | $88 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 18 | $89 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 80 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 319 | 45 |
| Olanzapine | 271 | 26 |
| Bupropion Hclbrand: Bupropion Xl | 244 | 35 |
| Fluoxetine Hcl | 220 | 26 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphet Er | 200 | 20 |
| Trazodone Hcl | 200 | 36 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24,712 across 61 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-10
- Last updated
- 2013-04-01
Frequently asked questions
- What is Troy Stiles's NPI number?
- Troy Stiles's National Provider Identifier (NPI) is 1437122207, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Troy Stiles's specialty?
- Troy Stiles is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Troy Stiles located?
- Troy Stiles's practice location on file with NPPES is 820 Division St, Billings, MT 59101-2049.
- What is Troy Stiles's phone number?
- The practice phone number listed in the NPPES registry for Troy Stiles is (406) 294-5225.
- Does Troy Stiles accept Medicare?
- Troy Stiles is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Troy Stiles's NPI active?
- Yes — Troy Stiles's NPI (1437122207) is active in the NPPES registry as of the last update on 2013-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.