David Alter, MD
NPI 1679569404 · Chemical Pathology Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Alter, MD is a Chemical Pathology Physician provider in Grand Rapids, MI (NPI 1679569404).
Provider details
- NPI number
- 1679569404
- Entity type
- Individual
- Primary specialty
- Chemical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301074759 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
3,382 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Immunologic Analysis Technique on Serum (immunofixation)86334 | 994 | $17 |
| Protein Measurement, Serum84165 | 920 | $17 |
| Protein Measurement, Serum84165 | 570 | $17 |
| Immunologic Analysis Technique on Serum (immunofixation)86334 | 533 | $17 |
| Protein Measurement, Body Fluid84166 | 117 | $18 |
| Immunologic Analysis Technique on Body Fluid, Other Fluids With Concentration86335 | 94 | $18 |
| Immunologic Analysis Technique on Body Fluid, Other Fluids With Concentration |
Practice location
Mailing address
Additional practice locations (1)
- 2990 Franklin Ave SwGrandville, MI 49418-3505Phone: (616) 530-3344Fax: (616) 532-8040
Registry dates
- Enumerated
- 2005-09-27
- Last updated
- 2019-08-16
Frequently asked questions
- What is David Alter's NPI number?
- David Alter's National Provider Identifier (NPI) is 1679569404, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Alter's specialty?
- David Alter is listed in the NPPES registry with a primary specialty of Chemical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is David Alter located?
- David Alter's practice location on file with NPPES is 35 Michigan St Ne, Grand Rapids, MI 49503-2514.
- What is David Alter's phone number?
- The practice phone number listed in the NPPES registry for David Alter is (616) 267-2660.
- Does David Alter accept Medicare?
- David Alter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Alter's NPI active?
- Yes — David Alter's NPI (1679569404) is active in the NPPES registry as of the last update on 2019-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.