John Kirk, M.D.
NPI 1255336392 · Ophthalmology Physician · Loveland, CO
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Kirk, M.D. is a Ophthalmology Physician provider in Loveland, CO (NPI 1255336392).
Provider details
- NPI number
- 1255336392
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 28606 (CO)
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
21 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
4,480 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) |
|---|---|---|
| Imaging of Retina92134 | 1,122 | $41 |
| Established Patient Complete Exam of Visual System92014 | 758 | $128 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 546 | $91 |
| Injection of Drug Into Eye67028 | 493 | $126 |
| New Patient Complete Exam of Visual System92004 | 257 | $151 |
| Photography of the Retina92250 | 196 | $37 |
| Measurement of Corneal Curvature and Depth of Eye |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 482 | 164 |
| Timolol Maleate | 168 | 67 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 91 | 28 |
| Brimonidine Tartrate | 69 | 27 |
| Dorzolamide Hcl | 47 | 17 |
| Netarsudil Mesylatebrand: Rhopressa | 39 | 16 |
| Prednisolone Acetate | 31 | 20 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$180 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
- 2005-06-16
- Last updated
- 2026-01-07
- Certified
- 2026-01-07
Frequently asked questions
- What is John Kirk's NPI number?
- John Kirk's National Provider Identifier (NPI) is 1255336392, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Kirk's specialty?
- John Kirk is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is John Kirk located?
- John Kirk's practice location on file with NPPES is 3650 E 15th St, Loveland, CO 80538-8701.
- What is John Kirk's phone number?
- The practice phone number listed in the NPPES registry for John Kirk is (970) 669-1107.
- Does John Kirk accept Medicare?
- John Kirk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Kirk's NPI active?
- Yes — John Kirk's NPI (1255336392) is active in the NPPES registry as of the last update on 2026-01-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.