Maria Z. Holden
Physician Assistant · Hermiston, OR
Maria Z. Holden is a physician assistant with a practice address in Hermiston, Oregon, and NPI 1306517685, issued on Sep 25, 2021. Check the license (Oregon PA213905, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Maria Z. Holden
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA213905 OR
Self-reported in NPPES; status is on the state search - Practice location
- 600 NW 11TH St Ste E37, Hermiston, OR 97838
- Phone
- (541) 567-5305
- Enumerated
- Sep 25, 2021
- Record last updated
- Jun 11, 2026
- Fax
- (541) 667-3831
- Medicare enrollment
- Enrolled (PECOS I20221201002127); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 600 NW 11TH St Ste E37
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Buck, M.D.Family Medicine Physician1629307087
- Ashley Christensen, ARNPFamily Nurse Practitioner1073082046
- Christopher David, MDChild & Adolescent Psychiatry Physician1508362849
- Vivienne Evans, A.R.N.P.Nurse Practitioner1568492486
- Michael Hall, RDRegistered Dietitian1487134557
- Phyllis Hansell, FNP-CFamily Nurse Practitioner1023101631
Verify Maria Z. Holden in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license PA213905Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% more Medicare Part D claims than the average physician assistant in 2024
1,068 Medicare Part D claims for 136 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium95 claims
- Lisinopril84 claims
- Levothyroxine Sodium64 claims
- Losartan Potassium63 claims
- Amlodipine Besylate53 claims
- Hydrochlorothiazide41 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 3 group practices
- Good Shepherd Health Care SystemHermiston, OR
- Icco LLCEugene, OR
- Yakima Valley Farm Workers ClinicHermiston, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
17 physician assistant records list a practice address in Hermiston
They are 17 of the 479 NPPES records with a practice address in Hermiston, and 2,094 physician assistant records in Oregon.
All 17 in Hermiston → All 2,094 in Oregon → Every provider in Hermiston →
Other physician assistant records in Oregon
- Taylor Abdala, PAStayton, OR1528694221
- Sanyi Yoseph AbdissaHermiston, OR1083356018
- Emad Aboujaoude, PAPortland, OR1982619490
- Aaron AbrahamHappy Valley, OR1063186823
- Erika Acuna, PA-CPortland, OR1881072775
- Heather Adair, PA-CTigard, OR1568749539
- John Adair, PA-CIrrigon, OR1578873477
- Kylee AdamekBend, OR1326720186
- Julie Adams, PA-CHillsboro, OR1710078779
- Danielle Addleman, PAPendleton, OR1669745469
Common questions
What is Maria Z. Holden's NPI number?
Maria Z. Holden's National Provider Identifier (NPI) is 1306517685, issued on Sep 25, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Maria Z. Holden located?
The NPPES record lists a practice address at 600 NW 11TH St Ste E37, Hermiston, OR, 97838. Phone: (541) 567-5305. Providers update this record themselves, so call before visiting.
How can I verify Maria Z. Holden's license?
NPPES lists Oregon license number PA213905, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Maria Z. Holden prescribe under Medicare Part D?
In 2024, Maria Z. Holden had 1,068 Medicare Part D claims for 136 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.