Omar Merchant
NPI 1861846859 · Internal Medicine Physician · Dallas, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Omar Merchant is a Internal Medicine Physician provider in Dallas, TX (NPI 1861846859).
Provider details
- NPI number
- 1861846859
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- R4744 (TX)
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
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
284 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 152 | $80 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 67 | $120 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 46 | $115 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 19 | $176 |
Typical Medicare-allowed amounts for these services range $80–$176 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 23 | 14 |
| Atorvastatin Calcium | 18 | 13 |
| Bumetanide | 17 | — |
| Clopidogrel Bisulfatebrand: Clopidogrel | 16 | — |
| Carvedilol | 15 | — |
| Furosemide | 15 | 14 |
| Rosuvastatin Calcium | 14 | — |
Practice location
Mailing address
Additional practice locations (2)
- 1 Baylor PlzHouston, TX 77030-3411Phone: (713) 798-4951
- 6720 Bertner AveHouston, TX 77030-2604Phone: (832) 355-1000
Registry dates
- Enumerated
- 2016-04-16
- Last updated
- 2024-12-05
- Certified
- 2024-12-05
Frequently asked questions
- What is Omar Merchant's NPI number?
- Omar Merchant's National Provider Identifier (NPI) is 1861846859, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Omar Merchant's specialty?
- Omar Merchant is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Omar Merchant located?
- Omar Merchant's practice location on file with NPPES is 12700 Hillcrest Rd Ste 145, Dallas, TX 75230-2059.
- What is Omar Merchant's phone number?
- The practice phone number listed in the NPPES registry for Omar Merchant is (214) 506-3058.
- Does Omar Merchant accept Medicare?
- Omar Merchant is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Omar Merchant's NPI active?
- Yes — Omar Merchant's NPI (1861846859) is active in the NPPES registry as of the last update on 2024-12-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.