Robert Allen Graybill, ND
Naturopath · Portland, OR
Robert Allen Graybill, ND is a naturopath with a practice address in Portland, Oregon, and NPI 1760996631, issued on Nov 29, 2017. Check the license (Oregon 4139, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Robert Allen Graybill
- Credential
- ND
- Primary taxonomy
- Naturopath 175F00000X
- License number
- 4139 OR
Self-reported in NPPES; status is on the state search - Practice location
- 1330 SE Cesar Estrada Chavez Boulevard, Portland, OR 97214
- Phone
- (503) 232-1100
- Enumerated
- Nov 29, 2017
- Record last updated
- Jul 9, 2026
- Fax
- (503) 232-7751
- Entity
- Type 1 · individual
8 nearest naturopath records → All 1,181 in Oregon → Look up another NPI →
Verify Robert Allen Graybill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license 4139Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% more Medicare Part D claims than the average naturopath in 2024
153 Medicare Part D claims, against an average of 109 among the 1,866 providers of this specialty who prescribed in Part D.
Most prescribed
- Losartan Potassium15 claims
- Baclofen12 claims
- Levothyroxine Sodium12 claims
- Propranolol Hcl11 claims
- Sertraline Hcl11 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.
Robert Allen Graybill among 1,181 naturopath records in Oregon
Robert Allen Graybill, ND is one of 1,181 naturopath records with a practice address in Oregon. 37% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 69% of them.
- NPI issued2017 · 69% of these records are older, 26% newer
- In a Medicare fileYes · 37% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 175F00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
687 naturopath records list a practice address in Portland
They are 687 of the 42,088 NPPES records with a practice address in Portland, and 1,181 naturopath records in Oregon.
All 1,181 in Oregon → Every provider in Portland → Naturopath nationwide →
The 8 naturopath records with the nearest ZIP codes
- Mona Bhalla, N.D.Portland, OR 972141740360536
- Ann Holland, N.D., MSOM, L. AC.Portland, OR 972141760540710
- Amy Johnson, N.D.Portland, OR 972141851462808
- Julie Kahn, ND, LAC, LMTPortland, OR 972141174564769
- Stephanie Kaplan, N.D.Portland, OR 972141881737823
- Martin Milner, N.D.Portland, OR 972141720039621
- Gregory Nigh, ND, LACPortland, OR 972141841224615
- Sara Ohgushi, N.D.Portland, OR 972141700812302
Common questions
What is Robert Allen Graybill, ND's NPI number?
Robert Allen Graybill, ND's National Provider Identifier (NPI) is 1760996631, issued on Nov 29, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Robert Allen Graybill, ND located?
The NPPES record lists a practice address at 1330 SE Cesar Estrada Chavez Boulevard, Portland, OR, 97214. Phone: (503) 232-1100. Providers update this record themselves, so call before visiting.
How can I verify Robert Allen Graybill, ND's license?
NPPES lists Oregon license number 4139, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Robert Allen Graybill, ND prescribe under Medicare Part D?
In 2024, Robert Allen Graybill, ND had 153 Medicare Part D claims; the average among naturopath prescribers was 109. 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.