Ralph Crew, D.O.
NPI 1639281934 · Ophthalmology Physician · Big Rapids, MI
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ralph Crew, D.O. is a Ophthalmology Physician provider in Big Rapids, MI (NPI 1639281934).
Provider details
- NPI number
- 1639281934
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- RC008359 (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
483 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 | 114 | $122 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 69 | $86 |
| Imaging of Retina92134 | 64 | $37 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 54 | $37 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 45 | $504 |
| Imaging of Optic Nerve92133 | 40 | $34 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 339 | 114 |
| Prednisolone Acetate | 185 | 109 |
| Acetazolamide | 171 | 106 |
| Timolol Maleate | 99 | 34 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 82 | 21 |
| Dorzolamide Hcl | 49 | 12 |
| Brimonidine Tartrate | 39 | 14 |
| Brinzolamide/Brimonidine Tartbrand: Simbrinza |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$72 across 4 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
- 2006-08-31
- Last updated
- 2012-12-20
Frequently asked questions
- What is Ralph Crew's NPI number?
- Ralph Crew's National Provider Identifier (NPI) is 1639281934, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ralph Crew's specialty?
- Ralph Crew is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Ralph Crew located?
- Ralph Crew's practice location on file with NPPES is 650 Linden St, Big Rapids, MI 49307-1880.
- What is Ralph Crew's phone number?
- The practice phone number listed in the NPPES registry for Ralph Crew is (231) 796-0010.
- Does Ralph Crew accept Medicare?
- Ralph Crew is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ralph Crew's NPI active?
- Yes — Ralph Crew's NPI (1639281934) is active in the NPPES registry as of the last update on 2012-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.