Spencer Thornock, MD
NPI 1912499757 · Psychiatry Physician · Alma, MI
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Spencer Thornock, MD is a Psychiatry Physician provider in Alma, MI (NPI 1912499757).
Provider details
- NPI number
- 1912499757
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301115437 (MI)
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
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
178 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 124 | $77 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 29 | $169 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 25 | $119 |
Typical Medicare-allowed amounts for these services range $77–$169 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Esketamine Hclbrand: Spravato | 235 | — |
| Mirtazapine | 22 | 12 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 18 | — |
| Trazodone Hcl | 18 | 11 |
| Quetiapine Fumarate | 15 | — |
| Sertraline Hcl | 13 | — |
| Escitalopram Oxalate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$218 across 10 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
Additional practice locations (1)
- 1621 E Broomfield St Ste aMt Pleasant, MI 48858-5427Phone: (989) 463-2779Fax: (989) 463-2064
Registry dates
- Enumerated
- 2018-06-06
- Last updated
- 2024-09-16
- Certified
- 2024-09-16
Frequently asked questions
- What is Spencer Thornock's NPI number?
- Spencer Thornock's National Provider Identifier (NPI) is 1912499757, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Spencer Thornock's specialty?
- Spencer Thornock is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Spencer Thornock located?
- Spencer Thornock's practice location on file with NPPES is 120 E Warwick Dr, Alma, MI 48801-1010.
- What is Spencer Thornock's phone number?
- The practice phone number listed in the NPPES registry for Spencer Thornock is (989) 463-2779.
- Does Spencer Thornock accept Medicare?
- Spencer Thornock is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Spencer Thornock's NPI active?
- Yes — Spencer Thornock's NPI (1912499757) is active in the NPPES registry as of the last update on 2024-09-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.