Gregory H. Holles, MD
Family Medicine Physician · Beaverton, OR
Gregory H. Holles, MD is a family medicine physician with a practice address in Beaverton, Oregon, and NPI 1750320206, issued on Jun 6, 2006. Check the license (Oregon MD22095, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregory H. Holles
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD22095 OR
Self-reported in NPPES; status is on the state search - Practice location
- 2935 SW Cedar Hills Blvd, Beaverton, OR 97005
- Phone
- (503) 352-6000
- Enumerated
- Jun 6, 2006
- Record last updated
- Dec 17, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (503) 352-6081
- Medicare enrollment
- Enrolled (PECOS I20051215000015); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical Branch At Galveston, 1990
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,847 in Oregon → Look up another NPI →
Also registered at 2935 SW Cedar Hills Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joel Bohling, MDFamily Medicine Physician1700818762
- Monica CalkoPharmacist1700374527
- Kimberly Cummings, M.D.Pediatrics Physician1407173040
- Judy Flynn, PAPhysician Assistant1083924948
- Carolyn Goebel, M.D.Family Medicine Physician1073749164
- Petya Gueordjeva, M.D.Family Medicine Physician1346268059
Verify Gregory H. Holles in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD22095Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average family medicine physician in 2024
2,262 Medicare Part D claims for 157 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 24 claims were for opioids.
Most prescribed
- Atorvastatin Calcium147 claims
- Lisinopril96 claims
- Omeprazole88 claims
- Amlodipine Besylate76 claims
- Losartan Potassium75 claims
- Albuterol Sulfate Hfa69 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
- Virginia Garcia Memorial Health CenterBeaverton, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory H. Holles among 2,847 family medicine physician records in Oregon
Gregory H. Holles, MD 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 53% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1990 · median 2009 among the 1,671 with a school on file
- Record last updated2019 · 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).
81 family medicine physician records list a practice address in Beaverton
They are 81 of the 3,604 NPPES records with a practice address in Beaverton, and 2,847 family medicine physician records in Oregon.
All 2,847 in Oregon → Every provider in Beaverton → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Robert Barlow, MDBeaverton, OR 970051902842081
- Yee Chang, MDBeaverton, OR 970051871566539
- Anshu Dhingra, MDBeaverton, OR 970051811942733
- Christian Hill, MDBeaverton, OR 970051356380984
- Jeffrey Katz, MDBeaverton, OR 970051992757264
- Jennifer Lietzke, M.D.Beaverton, OR 970051699701631
- Herbert Lim, MDBeaverton, OR 970051235124520
- Miranda McCormack, MDBeaverton, OR 970051356397871
Common questions
What is Gregory H. Holles, MD's NPI number?
Gregory H. Holles, MD's National Provider Identifier (NPI) is 1750320206, issued on Jun 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory H. Holles, MD located?
The NPPES record lists a practice address at 2935 SW Cedar Hills Blvd, Beaverton, OR, 97005. Phone: (503) 352-6000. Providers update this record themselves, so call before visiting.
How can I verify Gregory H. Holles, MD's license?
NPPES lists Oregon license number MD22095, 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 H. Holles, MD prescribe under Medicare Part D?
In 2024, Gregory H. Holles, MD had 2,262 Medicare Part D claims for 157 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.