Individual provider

Zohair Abbas, MD

Rheumatology Physician Internal Medicine Physician Hospitalist Physician Medicare enrolled

Zohair Abbas, MD is a Rheumatology Physician in Houston, TX, registered under NPI 1598944027. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 13325 HARGRAVE RD, Houston, TX 77070. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

13325 HARGRAVE RD, Houston, TX 77070 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
P5251 TX Rheumatology Physician primary
P5251 TX Internal Medicine Physician
P5251 TX Hospitalist Physician

This provider holds licence P5251 issued in TX. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Rheumatology
PAC ID
9537249990
Enrollment ID
I20130829000121

Medicare enrolment is recorded as approved under the provider type Practitioner - Rheumatology. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

What Rheumatology covers

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and "collagen" diseases. NUCC Health Care Provider Taxonomy, code 207RR0500X
Allopathic & Osteopathic Physicians Internal Medicine Rheumatology

All registered taxonomy codes

This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
207RR0500X Rheumatology Physician Rheumatology P5251 TX primary
207R00000X Internal Medicine Physician P5251 TX
208M00000X Hospitalist Physician P5251 TX

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1598944027 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateNov 1, 2007
Last updatedDec 15, 2020
StatusActive
Sole proprietorNo
CredentialMD
Practice address 13325 HARGRAVE RD
Houston, TX 77070
(832) 237-8585
Fax (832) 237-6565
Other identifiers 0497810 · Other (NY)
02937011 · Medicaid (NY)
The last update on file is Dec 15, 2020. Providers are only required to update NPPES when their information changes, so an older date does not necessarily mean the details are wrong — but it is worth a quick call before you travel.

Number check

1598944027 passes the NPI check digit test The final digit 7 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 5 9 8 9 4 4 0 2
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 5 9 8 9 4 8 0 4

Sum = 73 · next multiple of 10 = 80 · check digit = 7 · actual last digit = 7

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1598944027?
NPI 1598944027 is the National Provider Identifier assigned to Zohair Abbas, MD in Houston, TX. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Rheumatology cover?
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and "collagen" diseases.
How do I contact Zohair Abbas, MD?
The phone number on file with NPPES is (832) 237-8585, last updated Dec 15, 2020. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Zohair Abbas, MD accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1598944027 a valid number?
Yes. 1598944027 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.