Doctor profile · Federal record

Dr. Nathan Hamburger, MD

Ophthalmology Physician (CMS: Ophthalmology) · Internal Medicine Physician · Denver, CO

  • NPI 1336300458
  • Accepts Medicare
  • 18 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1255 19Th St, Suite 101
Denver, CO 802021459
(303) 293-9311
fax (303) 293-8028

Credentials & registration

NPPES · NUCC
NPI registered
June 2008 — 18 yrs on file
Profile last updated
November 29, 2012
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
207W00000X — NUCC code
State licenses (2)
Colorado #51040 · Michigan #4301092703
Medicaid
CO #18877559

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1336300458. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,898
Distinct HCPCS
10
Medicare allowed
$235,578
HCPCS Description Services Patients Avg allowed
92014 Established patient complete exam of visual system 353 342 $129
99213 Established patient office or other outpatient visit, 20-29 minutes 309 165 $91
92250 Photography of the retina 216 209 $38
99214 Established patient office or other outpatient visit, 30-39 minutes 216 174 $129
92004 New patient complete exam of visual system 149 149 $152
92134 Imaging of retina 141 122 $41
92136 Measurement of corneal curvature and depth of eye 136 81 $40
66984 Removal of cataract with insertion of prosthetic lens 96 58 $518
92083 Exam of visual field with extended testing 80 76 $64
92133 Imaging of optic nerve 80 74 $35

In context: peer comparison

Among 22 peers in this city , average services per provider: 226. This provider delivers 8.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
668
Patients
200
Total drug cost
$17,740
Drug Type Claims Patients Total cost
Latanoprost Generic 319 66 $4,797
Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) Brand 94 23 $2,042
Prednisolone Acetate Generic 82 46 $3,474
Ketorolac Tromethamine Generic 41 26 $1,810
Brimonidine Tartrate Generic 40 0 $636
Timolol Maleate Generic 40 13 $2,951
Dorzolamide Hcl Generic 20 0 $532
Tobramycin-Dexamethasone (Tobramycin/Dexamethasone) Brand 19 15 $1,351
Erythromycin (Erythromycin Base) Brand 13 11 $147

Frequently asked questions

Auto-generated from federal data
What is Dr. Nathan Hamburger's medical specialty?
Dr. Nathan Hamburger practices Ophthalmology Physician in Denver, CO.
Where does Dr. Nathan Hamburger practice?
Dr. Nathan Hamburger practices at 1255 19Th St, Denver, CO 802021459. Office phone: 3032939311.
What is Dr. Nathan Hamburger's NPI?
Dr. Nathan Hamburger's National Provider Identifier (NPI) is 1336300458, issued by NPPES.
Does Dr. Nathan Hamburger accept Medicare assignment?
Yes. Dr. Nathan Hamburger accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nathan Hamburger commonly perform?
Top Medicare-reported procedures in 2023: Established patient complete exam of visual system (HCPCS 92014); Established patient office or other outpatient visit (HCPCS 99213); Photography of the retina (HCPCS 92250). Source: CMS Medicare Physician & Other Practitioners file.