NPPES file of Aug 9, 2026

Tamara Lynn Houston, PA-C

Physician Assistant · Medford, OR

Tamara Lynn Houston, PA-C is a physician assistant with a practice address in Medford, Oregon, and NPI 1497172761, issued on Mar 25, 2014. Check the license (Oregon PA166331, as entered in NPPES) with the Oregon 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1497172761
Name
Tamara Lynn Houston
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
PA166331 OR
Self-reported in NPPES; status is on the state search
Practice location
503 Airport RD, Medford, OR 97504
Phone
(541) 200-2900
Enumerated
Mar 25, 2014
Record last updated
Dec 16, 2025
Fax
(541) 200-2949
Medicaid ID
500669689 OR
Medicare enrollment
Enrolled (PECOS I20140625001186); accepts Medicare assignment
Medical or professional school
Yale University School Of Medicine, 2013
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 503 Airport RD

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

  1. Elizabeth Anderson Allred, LCSWClinical Social Worker1417466103
  2. Kirsten ArreguinSocial Worker1992368682
  3. Chad Campbell, QMHAMental Health Counselor1588322366
  4. Shandra Lazar, LCSWMental Health Counselor1508351172
  5. Lainie QuattlebaumMental Health Counselor1386301646

Verify Tamara Lynn Houston in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oregon board licenses this profession
    Search for license PA166331
    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 Oregon 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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2.4 times the Medicare Part D claims of the average physician assistant in 2024

1,982 Medicare Part D claims for 73 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Tamara Houston1,982
  2. Specialty average830

Most prescribed

  1. Clozapine424 claims
  2. Escitalopram Oxalate100 claims
  3. Duloxetine Hcl96 claims
  4. Lamotrigine96 claims
  5. Risperidone96 claims
  6. Olanzapine90 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 2 group practices

  1. Columbiacare Services, Inc.Medford, OR
  2. Oregon Psychiatric Partners LLPEugene, OR

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

Tamara Lynn Houston among 2,094 physician assistant records in Oregon

Tamara Lynn Houston, PA-C is one of 2,094 physician assistant records with a practice address in Oregon. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 40% of them.

  • NPI issued2014 · 40% of these records are older, 56% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2013 · median 2017 among the 1,552 with a school on file
  • Record last updated2025 · 37% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

121 physician assistant records list a practice address in Medford

They are 121 of the 4,542 NPPES records with a practice address in Medford, and 2,094 physician assistant records in Oregon.

The 8 physician assistant records with the nearest ZIP codes

  1. Gregory Caldwell, P.A-CMedford, OR 975041023051190
  2. Micheline Cavallacci, PA-CMedford, OR 975041235113994
  3. Abby Coats, P.A.Medford, OR 975041548341738
  4. Jonathan Coniglio, PA-C, ATCMedford, OR 975041326082488
  5. Peter Gray, PA-CMedford, OR 975041528037397
  6. David Greene, PA-CMedford, OR 975041336189547
  7. Timothy Hall, P.A.-CMedford, OR 975041851319917
  8. Gordon Hart, PA-CMedford, OR 975041801852827

Common questions

What is Tamara Lynn Houston, PA-C's NPI number?

Tamara Lynn Houston, PA-C's National Provider Identifier (NPI) is 1497172761, issued on Mar 25, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Tamara Lynn Houston, PA-C located?

The NPPES record lists a practice address at 503 Airport RD, Medford, OR, 97504. Phone: (541) 200-2900. Providers update this record themselves, so call before visiting.

How can I verify Tamara Lynn Houston, PA-C's license?

NPPES lists Oregon license number PA166331, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

How much does Tamara Lynn Houston, PA-C prescribe under Medicare Part D?

In 2024, Tamara Lynn Houston, PA-C had 1,982 Medicare Part D claims for 73 beneficiaries; the average among physician assistant prescribers was 830. 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.