NPPES file of Aug 9, 2026

Billie Karen Martin, PA

Medical Physician Assistant · San Marcos, TX

Billie Karen Martin, PA is a medical physician assistant with a practice address in San Marcos, Texas, and NPI 1457344780, issued on Aug 23, 2005. Check the license (Texas PA00781, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1457344780
Name
Billie Karen Martin
Credential
PA
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
PA00781 TX
Self-reported in NPPES; status is on the state search
Practice location
1330 Wonder World Dr, San Marcos, TX 78666
Phone
(512) 396-5603
Enumerated
Aug 23, 2005
Record last updated
May 2, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(512) 396-5623
Medicaid ID
1961021-01 TX
Medicare enrollment
Enrolled (PECOS I20090121000398); accepts Medicare assignment
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 1330 Wonder World Dr

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

  1. William Abide, M.D.Cardiovascular Disease Physician1932307261
  2. Boguslaw Godlewski, MDCardiovascular Disease Physician1447251905
  3. Ellen Grimm, MDNephrology Physician1275500100
  4. Curtis Solomon, MDInterventional Cardiology Physician1801016480

Verify Billie Karen Martin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Texas board licenses this profession
    Search for license PA00781
    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
Find 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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94% fewer Medicare Part D claims than the average medical physician assistant in 2024

71 Medicare Part D claims for 34 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.

  1. Billie Martin71
  2. Specialty average1,148

Most prescribed

  1. Amoxicillin-Clavulanate Potass20 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 72.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score61.3
  2. Costout of 100 · 30%47.1
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $216.09

3 payments; by number, the most common kind was food and beverage; the largest payer was Solventum Corporation. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Billie Martin$216.09
  2. Specialty average$1,055.00

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

Bills Medicare through one group practice

  1. Seton Family OF DoctorsAustin, TX

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

Billie Karen Martin among 2,146 medical physician assistant records in Texas

Billie Karen Martin, PA is one of 2,146 medical physician assistant records with a practice address in Texas. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 94% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 44% of these records are
  • Graduated1989 · median 2012 among the 953 with a school on file
  • Record last updated2014 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Physician Assistant providers in Texas

There are 2,146 medical physician assistant records in Texas.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Elizabeth Cedrone, RPA-CSan Marcos, TX 786661174870117
  2. Samantha Alvarez, PA-CRound Rock, TX 786651790086866
  3. Michelle BrusenRound Rock, TX 786651649055989
  4. Shobha David, PA-CRound Rock, TX 786651033510151
  5. Stefany Delascurain, PA-CRound Rock, TX 786651255830345
  6. Richard Doerr, PA-CRound Rock, TX 786651710912076
  7. Hiep Mai, P.A.Round Rock, TX 786651861878399
  8. Amber Melero, PA-CRound Rock, TX 786651982958104

Common questions

What is Billie Karen Martin, PA's NPI number?

Billie Karen Martin, PA's National Provider Identifier (NPI) is 1457344780, issued on Aug 23, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Billie Karen Martin, PA located?

The NPPES record lists a practice address at 1330 Wonder World Dr, San Marcos, TX, 78666. Phone: (512) 396-5603. Providers update this record themselves, so call before visiting.

How can I verify Billie Karen Martin, PA's license?

NPPES lists Texas license number PA00781, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.

How much does Billie Karen Martin, PA prescribe under Medicare Part D?

In 2024, Billie Karen Martin, PA had 71 Medicare Part D claims for 34 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.

What is Billie Karen Martin, PA's MIPS final score?

The 2023 MIPS final score is 72.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.