James Walter, MD
NPI 1912009580 · Internal Medicine Physician · Davison, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Walter, MD is a Internal Medicine Physician provider in Davison, MI (NPI 1912009580).
Provider details
- NPI number
- 1912009580
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301062069 (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
19 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
858 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 | 133 | $121 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 114 | $172 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 94 | $123 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 93 | $75 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 91 | $13 |
| Hemoglobin A1c Level83036 | 72 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 154 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 475 | 112 |
| Atorvastatin Calcium | 414 | 115 |
| Hydrochlorothiazide | 308 | 82 |
| Omeprazole | 296 | 79 |
| Simvastatin | 260 | 65 |
| Lisinopril | 257 | 69 |
| Amlodipine Besylate | 246 | 63 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$242 across 14 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
- 2006-09-02
- Last updated
- 2009-01-12
Frequently asked questions
- What is James Walter's NPI number?
- James Walter's National Provider Identifier (NPI) is 1912009580, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Walter's specialty?
- James Walter is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Walter located?
- James Walter's practice location on file with NPPES is 8020 Davison Rd, Davison, MI 48423-2029.
- What is James Walter's phone number?
- The practice phone number listed in the NPPES registry for James Walter is (810) 653-4145.
- Does James Walter accept Medicare?
- James Walter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Walter's NPI active?
- Yes — James Walter's NPI (1912009580) is active in the NPPES registry as of the last update on 2009-01-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.