Nathan Hamburger, MD
NPI 1336300458 · Ophthalmology Physician · Denver, CO
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Hamburger, MD is a Ophthalmology Physician provider in Denver, CO (NPI 1336300458).
Provider details
- NPI number
- 1336300458
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301092703 (MI)
Specialties & taxonomies
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
18 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
1,798 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 | 437 | $127 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 217 | $91 |
| Photography of the Retina92250 | 213 | $37 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 165 | $128 |
| Imaging of Retina92134 | 144 | $40 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 137 | $39 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 387 | 85 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 91 | 21 |
| Timolol Maleate | 79 | 21 |
| Prednisolone Acetate | 61 | 35 |
| Brimonidine Tartrate | 57 | 12 |
| Ketorolac Tromethamine | 32 | 20 |
| Cyclosporinebrand: Restasis | 21 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-20
- Last updated
- 2012-11-29
Frequently asked questions
- What is Nathan Hamburger's NPI number?
- Nathan Hamburger's National Provider Identifier (NPI) is 1336300458, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Hamburger's specialty?
- Nathan Hamburger is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Nathan Hamburger located?
- Nathan Hamburger's practice location on file with NPPES is 1255 19th St, Denver, CO 80202-1459.
- What is Nathan Hamburger's phone number?
- The practice phone number listed in the NPPES registry for Nathan Hamburger is (303) 293-9311.
- Does Nathan Hamburger accept Medicare?
- Nathan Hamburger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Hamburger's NPI active?
- Yes — Nathan Hamburger's NPI (1336300458) is active in the NPPES registry as of the last update on 2012-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.