Troy Thielen, PAC
NPI 1720445810 · Physician Assistant · Okemos, MI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Troy Thielen, PAC is a Physician Assistant provider in Okemos, MI (NPI 1720445810).
Provider details
- NPI number
- 1720445810
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PAC
- Sex
- Male
- Sole proprietor
- No
- License
- 5601007643 (MI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
10 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 77 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 167 | 75 |
| Levothyroxine Sodium | 145 | 66 |
| Lisinopril | 135 | 60 |
| Amlodipine Besylate | 129 | 55 |
| Omeprazole | 104 | 50 |
| Gabapentin | 82 | 38 |
| Prednisone |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,042 across 122 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
- 2016-01-21
- Last updated
- 2016-01-21
Frequently asked questions
- What is Troy Thielen's NPI number?
- Troy Thielen's National Provider Identifier (NPI) is 1720445810, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Troy Thielen's specialty?
- Troy Thielen is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Troy Thielen located?
- Troy Thielen's practice location on file with NPPES is 2270 Jolly Oak Rd, Okemos, MI 48864-3542.
- What is Troy Thielen's phone number?
- The practice phone number listed in the NPPES registry for Troy Thielen is (517) 975-9475.
- Does Troy Thielen accept Medicare?
- Troy Thielen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Troy Thielen's NPI active?
- Yes — Troy Thielen's NPI (1720445810) is active in the NPPES registry as of the last update on 2016-01-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.