NPPES file of Aug 9, 2026

Sumit Kumar, M.D.

Nephrology Physician · Dallas, TX

Sumit Kumar, M.D. is a nephrology physician with a practice address in Dallas, Texas, and NPI 1598743098, issued on Jan 4, 2006. Check the license (Texas L2973, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598743098
Name
Sumit Kumar
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
L2973 TX
Self-reported in NPPES; status is on the state search
Practice location
9900 N Central Expy Ste 215, Dallas, TX 75231
Phone
(214) 396-4950
Enumerated
Jan 4, 2006
Record last updated
Jul 18, 2023
Fax
(877) 423-5360
Medicaid ID
149501201 TX
Medicare enrollment
Enrolled (PECOS I20091006000705); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 9900 N Central Expy Ste 215

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Oyintayo Ajiboye, MDNephrology Physician1174017222
  2. Sepehr Daheshpour, M.D.Nephrology Physician1578909164
  3. Shaun Kaiser, MDNephrology Physician1538327150
  4. Lorinda Liles, NP-CFamily Nurse Practitioner1104207414
  5. Chukwuma Osifeso, MDNephrology Physician1659650091
  6. Uma Pakkivenkata, M.D.Nephrology Physician1003003609

Verify Sumit Kumar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license L2973
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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89% more Medicare Part D claims than the average nephrology physician in 2024

2,771 Medicare Part D claims for 388 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.

  1. Sumit Kumar2,771
  2. Specialty average1,465

Most prescribed

  1. Allopurinol267 claims
  2. Farxiga226 claims
  3. Jardiance192 claims
  4. Amlodipine Besylate150 claims
  5. Hydralazine Hcl124 claims
  6. Kerendia89 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $60,850.90

116 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sumit Kumar$60,851
  2. Specialty average$3,091

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Access Telecare PLLCShenandoah, TX
  2. Cardiac Cath Lab OF Dallas LPDallas, TX
  3. Straightline Medical ConsultantsDallas, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sumit Kumar among 1,159 nephrology physician records in Texas

Sumit Kumar, M.D. is one of 1,159 nephrology physician records with a practice address in Texas. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.

  • NPI issued2006 · 15% of these records are older, 53% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 82% of these records are
  • Graduated1991 · median 2001 among the 954 with a school on file
  • Record last updated2023 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Texas

There are 1,159 nephrology physician records in Texas.

The 8 nephrology physician records with the nearest ZIP codes

  1. Oyintayo Ajiboye, MDDallas, TX 752311174017222
  2. Sepehr Daheshpour, M.D.Dallas, TX 752311578909164
  3. Shaun Kaiser, MDDallas, TX 752311538327150
  4. Surachit Kumar, MDDallas, TX 752311598996993
  5. Chukwuma Osifeso, MDDallas, TX 752311659650091
  6. Uma Pakkivenkata, M.D.Dallas, TX 752311003003609
  7. Vivek Sharma, M.D.Dallas, TX 752311225297922
  8. Wut Yi Hninn, MDDallas, TX 752301992128557

Common questions

What is Sumit Kumar, M.D.'s NPI number?

Sumit Kumar, M.D.'s National Provider Identifier (NPI) is 1598743098, issued on Jan 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sumit Kumar, M.D. located?

The NPPES record lists a practice address at 9900 N Central Expy Ste 215, Dallas, TX, 75231. Phone: (214) 396-4950. Providers update this record themselves, so call before visiting.

How can I verify Sumit Kumar, M.D.'s license?

NPPES lists Texas license number L2973, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Sumit Kumar, M.D. prescribe under Medicare Part D?

In 2024, Sumit Kumar, M.D. had 2,771 Medicare Part D claims for 388 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.