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SHARAF DIWAN, M.D., P.A. LLC
NPI 1215971072
Internal Medicine - Infectious Disease in Houston, TX

Active since June 15, 2006
18220 TOMBALL PKWY, #230, HOUSTON, TX 77070(832) 604-0005(832) 604-0103 Get Directions Write a Review

NPPES record last updated: July 5, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Sharaf Diwan, M.d., P.a. Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SHARAF DIWAN, M.D., P.A. LLC (NPI 1215971072) is a healthcare organization registered as an infectious disease in Houston, Texas and active in the NPI registry since June 2006. The organization lists Sharaf Y Diwan, Member, as its authorized official.

NPPES Registry Identity

NPI1215971072
Entity TypeOrganization
Primary Taxonomy207RI0200X
Legal Business NameSHARAF DIWAN, M.D., P.A. LLC
Location Address18220 TOMBALL PKWY, #230Houston, TX 77070-4347
Mailing Address18220 Tomball Pkwy, #230Houston, TX 77070-4347 · (832) 604-0005 · Fax (832) 604-0103
Phone(832) 604-0005
Fax(832) 604-0103
Organization SubpartNo
Authorized OfficialSharaf Y DiwanMember · (832) 604-0005
Enumeration DateJune 15, 2006
Last NPPES UpdateJuly 5, 2011
✔ NPI 1215971072 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in TX · J6920
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
18220 TOMBALL PKWY, Houston, TX 77070
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Other Identifiers 3

Medicare ID-Type Unspecified00566UTX
Medicare UPINF27206TX
Medicaid1401523-23TX

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sharaf Diwan, M.d., P.a. Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Sharaf Diwan, M.D., P.A. LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Sharaf Ali Diwan, M.D.
Infectious Disease
NPI 1114927290
18220 TOMBALL PKWY SUITE 230
Houston, TX 77070
(832) 604-0005
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sharaf Diwan, M.D., P.A. LLC's NPI number?

The NPI number for Sharaf Diwan, M.D., P.A. LLC is 1215971072. It was assigned to this organization in the NPPES registry on June 15, 2006.

Where is Sharaf Diwan, M.D., P.A. LLC located?

Sharaf Diwan, M.D., P.A. LLC is located at 18220 Tomball Pkwy #230, Houston, TX 77070. The listed phone number is (832) 604-0005.

What is Sharaf Diwan, M.D., P.A. LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Sharaf Diwan, M.D., P.A. LLC enrolled in Medicare?

Yes. Sharaf Diwan, M.D., P.A. LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Sharaf Diwan, M.D., P.A. LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Infectious Disease) reassigns their Medicare billing to Sharaf Diwan, M.D., P.A. LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Sharaf Diwan, M.D., P.A. LLC was last updated on July 5, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.