NPPES file of Aug 9, 2026

Nathan John Ham, D.O.

Emergency Medicine Physician · Irving, TX

Nathan John Ham, D.O. is an emergency medicine physician with a practice address in Irving, Texas, and NPI 1598031320, issued on Mar 27, 2012. Check the license (Texas Q4595, 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
1598031320
Name
Nathan John Ham
Credential
D.O.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
Q4595 TX
Self-reported in NPPES; status is on the state search
Practice location
6800 N Macarthur Blvd, Irving, TX 75039
Phone
(972) 969-2000
Enumerated
Mar 27, 2012
Record last updated
Jun 15, 2022
Medicare enrollment
Enrolled (PECOS I20150908001184); accepts Medicare assignment
Medical or professional school
Kansas City College Of Medicine And Surgery, 2011
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 6800 N Macarthur Blvd

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

  1. Mira Abdel Sattar, DOEmergency Medicine Physician1417586728
  2. Selim Ahmed, MDInternal Medicine Physician1508805813
  3. Shaquitta Bell, CRNACertified Registered Nurse Anesthetist1013587971
  4. K'Lynne CarrollSpeech-Language Pathologist1013854090
  5. Abdul-Ghaffaar Clark, MDEmergency Medicine Physician1053949305
  6. Marco Coppola, D.O.Emergency Medicine Physician1205811254

Verify Nathan John Ham in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license Q4595
    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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4% more Medicare Part D claims than the average emergency medicine physician in 2024

236 Medicare Part D claims for 125 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 16 claims were for opioids.

  1. Nathan Ham236
  2. Specialty average226

Most prescribed

  1. Meloxicam25 claims
  2. Methocarbamol20 claims
  3. Ondansetron Odt19 claims
  4. Hydrocodone-Acetaminophen14 claims
  5. Dicyclomine Hcl13 claims
  6. Albuterol Sulfate Hfa12 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. Emcare Rsn Emergency Physicians PLLCCelina, TX

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

Nathan John Ham among 4,885 emergency medicine physician records in Texas

Nathan John Ham, D.O. is one of 4,885 emergency medicine physician records with a practice address in Texas. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 55% of them.

  • NPI issued2012 · 55% of these records are older, 41% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2011 · median 2013 among the 2,779 with a school on file
  • Record last updated2022 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in Texas

There are 4,885 emergency medicine physician records in Texas.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Mira Abdel Sattar, DOIrving, TX 750391417586728
  2. Abdul-Ghaffaar Clark, MDIrving, TX 750391053949305
  3. Marco Coppola, D.O.Irving, TX 750391205811254
  4. Kokie Duncan, D.O.Irving, TX 750391316923048
  5. Alexander Kennedy, M.D.Irving, TX 750391821074006
  6. Vinh Mai, M.D.Irving, TX 750391255651279
  7. Lee Reagor, MDIrving, TX 750391265411789
  8. Rajnil Shah, M.D.Garland, TX 750411619284189

Common questions

What is Nathan John Ham, D.O.'s NPI number?

Nathan John Ham, D.O.'s National Provider Identifier (NPI) is 1598031320, issued on Mar 27, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Nathan John Ham, D.O. located?

The NPPES record lists a practice address at 6800 N Macarthur Blvd, Irving, TX, 75039. Phone: (972) 969-2000. Providers update this record themselves, so call before visiting.

How can I verify Nathan John Ham, D.O.'s license?

NPPES lists Texas license number Q4595, 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 Nathan John Ham, D.O. prescribe under Medicare Part D?

In 2024, Nathan John Ham, D.O. had 236 Medicare Part D claims for 125 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.