NPPES file of Aug 9, 2026

Cesar Agustin Perez, MD

Internal Medicine Physician · Longview, TX

Cesar Agustin Perez, MD is an internal medicine physician with a practice address in Longview, Texas, and NPI 1285161109, issued on May 23, 2017. Check the license (Texas S6709, 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
1285161109
Name
Cesar Agustin Perez
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
S6709 TX
Self-reported in NPPES; status is on the state search
Practice location
2901 N 4TH Street, Longview, TX 75605
Phone
(903) 758-1818
Enumerated
May 23, 2017
Record last updated
Aug 27, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200602001221); accepts Medicare assignment
Medical or professional school
University Of Texas Medical Branch At Galveston, 2017
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 2901 N 4TH Street

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

  1. Deborah Bell, NPNurse Practitioner1023085768
  2. Austin Deschner, M.D.Internal Medicine Physician1699160390
  3. Doris Ford, MDFamily Medicine Physician1932103835

Verify Cesar Agustin Perez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license S6709
    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% fewer Medicare Part D claims than the average internal medicine physician in 2024

362 Medicare Part D claims for 202 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Cesar Perez362
  2. Specialty average3,176

Most prescribed

  1. Furosemide49 claims
  2. Clopidogrel33 claims
  3. Potassium Chloride26 claims
  4. Pantoprazole Sodium23 claims
  5. Levofloxacin18 claims
  6. Prednisone14 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.

Bills Medicare through one group practice

  1. Associated Clinicians OF East TexasLongview, TX

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

Cesar Agustin Perez among 9,175 internal medicine physician records in Texas

Cesar Agustin Perez, MD is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 77% of them.

  • NPI issued2017 · 77% of these records are older, 21% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2017 · median 2004 among the 6,088 with a school on file
  • Record last updated2021 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

99 internal medicine physician records list a practice address in Longview

They are 99 of the 2,066 NPPES records with a practice address in Longview, and 9,175 internal medicine physician records in Texas.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Joseph Bell, MDLongview, TX 756051205803079
  2. Sita Devulapalli, M.D.Longview, TX 756051578558904
  3. Ifeanyi Elueze, MD PHDLongview, TX 756051396734802
  4. John Greifenkamp, MDLongview, TX 756051396712980
  5. Roger Kiser, MDLongview, TX 756051154398840
  6. Kenneth McClure, MDLongview, TX 756051770550311
  7. Rekha Reddy, M.D.Longview, TX 756051285630558
  8. George Saikin, MDLongview, TX 756051316914831

Common questions

What is Cesar Agustin Perez, MD's NPI number?

Cesar Agustin Perez, MD's National Provider Identifier (NPI) is 1285161109, issued on May 23, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Cesar Agustin Perez, MD located?

The NPPES record lists a practice address at 2901 N 4TH Street, Longview, TX, 75605. Phone: (903) 758-1818. Providers update this record themselves, so call before visiting.

How can I verify Cesar Agustin Perez, MD's license?

NPPES lists Texas license number S6709, 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 Cesar Agustin Perez, MD prescribe under Medicare Part D?

In 2024, Cesar Agustin Perez, MD had 362 Medicare Part D claims for 202 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.