NPPES file of Aug 9, 2026

Harlan Mark Guidry, MD

Family Medicine Physician · Texas City, TX

Harlan Mark Guidry, MD is a family medicine physician with a practice address in Texas City, Texas, and NPI 1700896107, issued on Aug 8, 2006. Check the license (Texas H4366, 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
1700896107
Name
Harlan Mark Guidry
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
H4366 TX
Self-reported in NPPES; status is on the state search
Practice location
2000 Texas Ave, Texas City, TX 77590
Phone
(409) 949-3406
Enumerated
Aug 8, 2006
Record last updated
Jul 10, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(409) 949-3492
Medicare enrollment
Enrolled (PECOS I20200511003345); accepts Medicare assignment
Medical or professional school
University Of Texas Medical Branch At Galveston, 1987
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 2000 Texas Ave

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

  1. Angela Allison, L.C.S.WClinical Social Worker1932530292
  2. Stephanie Hamilton, FNPPrimary Care Nurse Practitioner1477798064

Verify Harlan Mark Guidry in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license H4366
    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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99% fewer Medicare Part D claims than the average family medicine physician in 2024

48 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Harlan Guidry48
  2. Specialty average3,544

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. Outpatient Medical Center, Inc.Nachitoches, LA

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

Harlan Mark Guidry among 11,119 family medicine physician records in Texas

Harlan Mark Guidry, MD is one of 11,119 family 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 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1987 · median 2004 among the 7,095 with a school on file
  • Record last updated2007 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

20 family medicine physician records list a practice address in Texas City

They are 20 of the 399 NPPES records with a practice address in Texas City, and 11,119 family medicine physician records in Texas.

The 8 family medicine physician records with the nearest ZIP codes

  1. Chiachin Lin, M.DTexas City, TX 775901871520171
  2. Peter Beshara, MDTexas City, TX 775911225398522
  3. Deo Bhati, MDTexas City, TX 775911871608240
  4. James Doe, MDTexas City, TX 775911528258084
  5. James Dowling, MDTexas City, TX 775911639373293
  6. Chris Garcia, M.D.Texas City, TX 775911588625560
  7. Kyle Hamilton, M.D.Texas City, TX 775911659364446
  8. Karthik Jayakumar, M.D.Texas City, TX 775911225487192

Common questions

What is Harlan Mark Guidry, MD's NPI number?

Harlan Mark Guidry, MD's National Provider Identifier (NPI) is 1700896107, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Harlan Mark Guidry, MD located?

The NPPES record lists a practice address at 2000 Texas Ave, Texas City, TX, 77590. Phone: (409) 949-3406. Providers update this record themselves, so call before visiting.

How can I verify Harlan Mark Guidry, MD's license?

NPPES lists Texas license number H4366, 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 Harlan Mark Guidry, MD prescribe under Medicare Part D?

In 2024, Harlan Mark Guidry, MD had 48 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.