Peter Spencer, D.O.
NPI 1669479432 · Neurology Physician · Saint Joseph, MI
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Spencer, D.O. is a Neurology Physician provider in Saint Joseph, MI (NPI 1669479432).
Provider details
- NPI number
- 1669479432
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 5101010692 (MI)
Specialties & taxonomies
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
686 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 431 | $79 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 156 | $114 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 44 | $202 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 19 | $60 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Limited Study95885 | 18 | $35 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 52 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 367 | 81 |
| Levetiracetam | 308 | 71 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 226 | 52 |
| Topiramate | 176 | 38 |
| Donepezil Hcl | 174 | 56 |
| Pregabalin | 145 | 29 |
| Divalproex Sodium | 125 | 20 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$266 across 17 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
- 2005-07-07
- Last updated
- 2014-08-20
Frequently asked questions
- What is Peter Spencer's NPI number?
- Peter Spencer's National Provider Identifier (NPI) is 1669479432, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Spencer's specialty?
- Peter Spencer is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Spencer located?
- Peter Spencer's practice location on file with NPPES is 3950 Hollywood Rd, Saint Joseph, MI 49085-9159.
- What is Peter Spencer's phone number?
- The practice phone number listed in the NPPES registry for Peter Spencer is (269) 985-0000.
- Does Peter Spencer accept Medicare?
- Peter Spencer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Spencer's NPI active?
- Yes — Peter Spencer's NPI (1669479432) is active in the NPPES registry as of the last update on 2014-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.