Gregory James Parker, M.D.
Family Medicine Physician · Hood River, OR
Gregory James Parker, M.D. is a family medicine physician with a practice address in Hood River, Oregon, and NPI 1578781761, issued on Apr 23, 2007. Check the license (Oregon MD152156, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregory James Parker
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- MD152156 OR
BF7751856 WA
Self-reported in NPPES; status is on the state search - Practice location
- 849 Pacific Avenue, Hood River, OR 97031
- Phone
- (541) 386-6380
- Enumerated
- Apr 23, 2007
- Record last updated
- Nov 19, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (541) 308-8396
- Medicaid ID
- 500631154 OR
- Medicare enrollment
- Enrolled (PECOS I20101004001182); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,847 in Oregon → Look up another NPI →
Also registered at 849 Pacific Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Natalie Speck, MDFamily Medicine Physician1902061898
Verify Gregory James Parker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD152156Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average family medicine physician in 2024
1,234 Medicare Part D claims for 80 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 97 claims were for opioids.
Most prescribed
- Atorvastatin Calcium89 claims
- Lisinopril66 claims
- Trazodone Hcl43 claims
- Gabapentin41 claims
- Oxycodone Hcl40 claims
- Venlafaxine Hcl Er34 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
- One Community HealthHood River, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory James Parker among 2,847 family medicine physician records in Oregon
Gregory James Parker, M.D. is one of 2,847 family medicine physician records with a practice address in Oregon. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 45% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2006 · median 2009 among the 1,671 with a school on file
- Record last updated2011 · 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 207Q00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
46 family medicine physician records list a practice address in Hood River
They are 46 of the 717 NPPES records with a practice address in Hood River, and 2,847 family medicine physician records in Oregon.
All 2,847 in Oregon → Every provider in Hood River → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Orlando Acosta, MDHood River, OR 970311912990375
- Stephen Becker, M.D.Hood River, OR 970311194700609
- Helen Bellanca, MDHood River, OR 970311588658918
- Tina Castanares, MDHood River, OR 970311588666598
- Brenda Colfelt, MDHood River, OR 970311578565487
- Miriam Fauth, MDHood River, OR 970311417941840
- Anthony Gay, M.D.Hood River, OR 970311912982422
- Michael Harris, MDHood River, OR 970311104828896
Common questions
What is Gregory James Parker, M.D.'s NPI number?
Gregory James Parker, M.D.'s National Provider Identifier (NPI) is 1578781761, issued on Apr 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gregory James Parker, M.D. located?
The NPPES record lists a practice address at 849 Pacific Avenue, Hood River, OR, 97031. Phone: (541) 386-6380. Providers update this record themselves, so call before visiting.
How can I verify Gregory James Parker, M.D.'s license?
NPPES lists Oregon license number MD152156, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory James Parker, M.D. prescribe under Medicare Part D?
In 2024, Gregory James Parker, M.D. had 1,234 Medicare Part D claims for 80 beneficiaries; 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.