John Cranston, MD
NPI 1689639916 · Ophthalmology Physician · Kingston, NY
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Cranston, MD is a Ophthalmology Physician provider in Kingston, NY (NPI 1689639916).
Provider details
- NPI number
- 1689639916
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 116416-1 (NY)
Specialties & taxonomies
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
5 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
237 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 Problem Focused Exam of Visual System92012 | 101 | $93 |
| Established Patient Complete Exam of Visual System92014 | 82 | $133 |
| New Patient Complete Exam of Visual System92004 | 37 | $153 |
| Exam of Visual Field With Intermediate Testing92082 | 17 | $50 |
Typical Medicare-allowed amounts for these services range $50–$153 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 151 | 56 |
| Timolol Maleate | 49 | 12 |
| Brimonidine Tartrate | 27 | — |
| Dorzolamide Hcl | 27 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 23 | — |
| Bacitracin/Polymyxin B Sulfatebrand: Bacitracin-Polymyxin | 20 | 14 |
| Bimatoprostbrand: Lumigan | 12 | — |
Practice location
Mailing address
Additional practice locations (4)
- 396 BroadwayKingston, NY 12401-4626Phone: (845) 331-3131Fax: (845) 331-2530
- 368 BroadwayKingston, NY 12401-5144Phone: (845) 331-3131Fax: (845) 331-2530
- 241 North RdPoughkeepsie, NY 12601-1154Phone: (845) 483-5000
- 100 Woods RdValhalla, NY 10595-1530Phone: (914) 493-7000Fax: (914) 909-6417
Registry dates
- Enumerated
- 2006-04-19
- Last updated
- 2021-06-17
- Certified
- 2021-06-17
Frequently asked questions
- What is John Cranston's NPI number?
- John Cranston's National Provider Identifier (NPI) is 1689639916, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Cranston's specialty?
- John Cranston is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is John Cranston located?
- John Cranston's practice location on file with NPPES is 27 Grand St, Kingston, NY 12401-3933.
- What is John Cranston's phone number?
- The practice phone number listed in the NPPES registry for John Cranston is (845) 338-1535.
- Does John Cranston accept Medicare?
- John Cranston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Cranston's NPI active?
- Yes — John Cranston's NPI (1689639916) is active in the NPPES registry as of the last update on 2021-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.