What is Sumbul Islam's NPI number?

Sumbul Islam's National Provider Identifier (NPI) is 1992898860, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Sumbul Islam's specialty?

Sumbul Islam is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Sumbul Islam located?

Sumbul Islam's practice location on file with NPPES is 600 E Taylor St Ste 3011, Sherman, TX 75090-2850.

What is Sumbul Islam's phone number?

The practice phone number listed in the NPPES registry for Sumbul Islam is (903) 957-0417.

Does Sumbul Islam accept Medicare?

Sumbul Islam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Sumbul Islam's NPI active?

Yes — Sumbul Islam's NPI (1992898860) is active in the NPPES registry as of the last update on 2020-03-04.

IndividualActiveAccepts Medicare

Sumbul Islam, M.D.

NPI 1992898860 · Internal Medicine Physician · Sherman, TX

Sumbul Islam, M.D. is a Internal Medicine Physician provider in Sherman, TX (NPI 1992898860).

Provider details

NPI number: 1992898860
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Female
Sole proprietor: No
License: R4240 (TX)

Practice location

600 E Taylor St Ste 3011

Sherman, TX 75090-2850

Phone: (903) 957-0417

Fax: (903) 957-0242

Street-level locationGet directions

More TX providers

Mailing address

600 E Taylor St Ste 3011

Sherman, TX 75090-2850

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense R4240 (TX)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(85/100 index)

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
1,572 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 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)
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	445	$123
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	400	$86
Injection of Drug Or Substance Under Skin Or Into Muscle96372	116	$14
Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457	86	$47
Physician Or Allowed Practitioner Re-Certification for Medicare-Covered Home Health Services Under a Home Health Plan of Care (patient Not Present), Including Contacts With Home Health Agency and Review of Reports of Patient Status Required By Physicians aG0179	84	$40
Telephone Medical Discussion With Physician, 11-20 Minutes

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 183 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Levothyroxine Sodium	570	154
Atorvastatin Calcium	540	158
Gabapentin	508	124
Pantoprazole Sodium	464	130
Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen	406	87
Amlodipine Besylate	359	99

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$938 across 71 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.

Enumerated: 2006-10-02
Last updated: 2020-03-04
Certified: 2020-03-04

Frequently asked questions

What is Sumbul Islam's NPI number?: Sumbul Islam's National Provider Identifier (NPI) is 1992898860, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Sumbul Islam's specialty?: Sumbul Islam is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
Where is Sumbul Islam located?: Sumbul Islam's practice location on file with NPPES is 600 E Taylor St Ste 3011, Sherman, TX 75090-2850.
What is Sumbul Islam's phone number?: The practice phone number listed in the NPPES registry for Sumbul Islam is (903) 957-0417.
Does Sumbul Islam accept Medicare?: Sumbul Islam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Sumbul Islam's NPI active?: Yes — Sumbul Islam's NPI (1992898860) is active in the NPPES registry as of the last update on 2020-03-04.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

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	445	$123
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	400	$86
Injection of Drug Or Substance Under Skin Or Into Muscle96372	116	$14
Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457	86	$47
Physician Or Allowed Practitioner Re-Certification for Medicare-Covered Home Health Services Under a Home Health Plan of Care (patient Not Present), Including Contacts With Home Health Agency and Review of Reports of Patient Status Required By Physicians aG0179	84	$40
Telephone Medical Discussion With Physician, 11-20 Minutes

Drug

Part D claims (2024)

Beneficiaries

Levothyroxine Sodium

570

154

Atorvastatin Calcium

540

158

Gabapentin

508

124

Pantoprazole Sodium

464

130

Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen

406

Amlodipine Besylate

359

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$938 across 71 records (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments