Mohammad Karbassi, M.D.
NPI 1083659338 · Ophthalmology Physician · Longmont, CO
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mohammad Karbassi, M.D. is a Ophthalmology Physician provider in Longmont, CO (NPI 1083659338).
Provider details
- NPI number
- 1083659338
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 44707 (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
20 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
2,485 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 Complete Exam of Visual System92014 | 535 | $131 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 364 | $94 |
| Imaging of Retina92134 | 350 | $42 |
| Exam of Visual Field With Extended Testing92083 | 247 | $67 |
| Imaging of Optic Nerve92133 | 246 | $35 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 162 | $41 |
| Removal of Cataract With Insertion of Prosthetic Lens |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 869 | 228 |
| Timolol Maleate | 267 | 74 |
| Ketorolac Tromethamine | 212 | 203 |
| Prednisolone Acetate | 201 | 160 |
| Ofloxacin | 183 | 172 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 147 | 44 |
| Cyclosporinebrand: Restasis | 126 | 53 |
| Erythromycin Base |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$205 across 9 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
- 2006-06-19
- Last updated
- 2016-01-18
Frequently asked questions
- What is Mohammad Karbassi's NPI number?
- Mohammad Karbassi's National Provider Identifier (NPI) is 1083659338, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mohammad Karbassi's specialty?
- Mohammad Karbassi is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Mohammad Karbassi located?
- Mohammad Karbassi's practice location on file with NPPES is 205 S Main St, Longmont, CO 80501-1716.
- What is Mohammad Karbassi's phone number?
- The practice phone number listed in the NPPES registry for Mohammad Karbassi is (303) 772-3611.
- Does Mohammad Karbassi accept Medicare?
- Mohammad Karbassi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mohammad Karbassi's NPI active?
- Yes — Mohammad Karbassi's NPI (1083659338) is active in the NPPES registry as of the last update on 2016-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.