Tamer Mahmoud, MD
NPI 1588604458 · Retina Specialist (Ophthalmology) Physician · Royal Oak, MI
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tamer Mahmoud, MD is a Retina Specialist (Ophthalmology) Physician provider in Royal Oak, MI (NPI 1588604458).
Provider details
- NPI number
- 1588604458
- Entity type
- Individual
- Primary specialty
- Retina Specialist (Ophthalmology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 200300063 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
6,924 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 Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,823 | $94 |
| Injection of Drug Into Eye67028 | 1,585 | $133 |
| Imaging of Retina92134 | 1,443 | $40 |
| Photography of the Retina92250 | 1,002 | $37 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 302 | $133 |
| Exam of Retinal Blood Vessels Using a Special Camera After Injection of a Dye92235 | 244 | $164 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 113 | 55 |
| Ketorolac Tromethamine | 108 | 42 |
| Brimonidine Tartrate | 21 | — |
| Atropine Sulfate | 13 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$405 across 15 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
- 2006-06-07
- Last updated
- 2022-01-26
- Certified
- 2022-01-26
Frequently asked questions
- What is Tamer Mahmoud's NPI number?
- Tamer Mahmoud's National Provider Identifier (NPI) is 1588604458, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tamer Mahmoud's specialty?
- Tamer Mahmoud is listed in the NPPES registry with a primary specialty of Retina Specialist (Ophthalmology) Physician (Allopathic & Osteopathic Physicians).
- Where is Tamer Mahmoud located?
- Tamer Mahmoud's practice location on file with NPPES is 3555 W 13 Mile Rd # Ll-20, Royal Oak, MI 48073-6710.
- What is Tamer Mahmoud's phone number?
- The practice phone number listed in the NPPES registry for Tamer Mahmoud is (248) 288-2280.
- Does Tamer Mahmoud accept Medicare?
- Tamer Mahmoud is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tamer Mahmoud's NPI active?
- Yes — Tamer Mahmoud's NPI (1588604458) is active in the NPPES registry as of the last update on 2022-01-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.