John Muir, O.D.
NPI 1639161615 · Optometrist · Howell, MI
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Muir, O.D. is a Optometrist provider in Howell, MI (NPI 1639161615).
Provider details
- NPI number
- 1639161615
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4901003945 (MI)
Specialties & taxonomies
Eye and Vision Services Providers
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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
716 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) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 226 | $121 |
| New Patient Complete Exam of Visual System92004 | 160 | $145 |
| Placement of Amniotic Membrane on Eye Surface for Wound Healing65778 | 94 | $1,048 |
| Measurement of Retinal and Optic Nerve Function92273 | 66 | $123 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, at Least 10 Minutes99307 | 66 | $40 |
| Photography of the Retina92250 | 45 | $34 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Cyclosporine | 45 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-16
- Last updated
- 2011-09-07
Frequently asked questions
- What is John Muir's NPI number?
- John Muir's National Provider Identifier (NPI) is 1639161615, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Muir's specialty?
- John Muir is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is John Muir located?
- John Muir's practice location on file with NPPES is 810 E Grand River Ave, Howell, MI 48843-2432.
- What is John Muir's phone number?
- The practice phone number listed in the NPPES registry for John Muir is (517) 545-2020.
- Does John Muir accept Medicare?
- John Muir is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Muir's NPI active?
- Yes — John Muir's NPI (1639161615) is active in the NPPES registry as of the last update on 2011-09-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.