Zohair Abbas, MD
NPI 1598944027 · Rheumatology Physician · Houston, TX
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zohair Abbas, MD is a Rheumatology Physician provider in Houston, TX (NPI 1598944027).
Provider details
- NPI number
- 1598944027
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- P5251 (TX)
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
18 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
1,437 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 399 | $129 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 294 | $91 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 162 | $14 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 135 | $123 |
| Administration of Chemotherapy Into Vein, Each Additional Hour96415 | 123 | $27 |
| Administration of Non-Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96401 | 105 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 159 | 66 |
| Diclofenac Sodium | 142 | 60 |
| Tramadol Hcl | 130 | 38 |
| Hydroxychloroquine Sulfate | 100 | 33 |
| Methotrexate Sodiumbrand: Methotrexate | 93 | 26 |
| Allopurinol | 64 | 19 |
| Gabapentin | 56 | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,005 across 60 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
- 2007-11-01
- Last updated
- 2020-12-15
- Certified
- 2020-12-15
Frequently asked questions
- What is Zohair Abbas's NPI number?
- Zohair Abbas's National Provider Identifier (NPI) is 1598944027, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zohair Abbas's specialty?
- Zohair Abbas is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Zohair Abbas located?
- Zohair Abbas's practice location on file with NPPES is 13325 Hargrave Rd, Houston, TX 77070-4539.
- What is Zohair Abbas's phone number?
- The practice phone number listed in the NPPES registry for Zohair Abbas is (832) 237-8585.
- Does Zohair Abbas accept Medicare?
- Zohair Abbas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zohair Abbas's NPI active?
- Yes — Zohair Abbas's NPI (1598944027) is active in the NPPES registry as of the last update on 2020-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.