Robert Gregg Billow, D.O.
Physical Medicine & Rehabilitation Physician · Anacortes, WA
Robert Gregg Billow, D.O. is a physical medicine & rehabilitation physician with a practice address in Anacortes, Washington, and NPI 1689672552, issued on Jul 13, 2005. Check the license (Washington OP00001735, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Robert Gregg Billow
- Credential
- D.O.
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License number
- OP00001735 WA
Self-reported in NPPES; status is on the state search - Practice location
- 2511 M Ave Ste C, Anacortes, WA 98221
- Phone
- (360) 299-4929
- Enumerated
- Jul 13, 2005
- Record last updated
- Aug 5, 2022
- Fax
- (360) 299-4930
- Medicaid ID
- 8276842 WA
- Medicare enrollment
- Enrolled (PECOS I20110103000771); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 462 in Washington → Look up another NPI →
Verify Robert Gregg Billow in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP00001735Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average physical medicine & rehabilitation physician in 2024
1,744 Medicare Part D claims for 389 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 259 claims were for opioids.
Most prescribed
- Gabapentin488 claims
- Celecoxib365 claims
- Meloxicam312 claims
- Tramadol Hcl255 claims
- Diazepam90 claims
- Methylprednisolone43 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.
The MIPS final score for 2023 (Medicare payment program): 82.9 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Public Hospital District NO 2 Skagit County WashingtonAnacortes, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Gregg Billow among 462 physical medicine & rehabilitation physician records in Washington
Robert Gregg Billow, D.O. is one of 462 physical medicine & rehabilitation physician records with a practice address in Washington. 55% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 97% newer
- In a Medicare fileYes · 55% of these records are
- In the CMS Doctors and Clinicians fileYes · 44% of these records are
- Graduated1997 · median 2010 among the 203 with a school on file
- Record last updated2022 · 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 208100000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physical Medicine & Rehabilitation Physician providers in Washington
There are 462 physical medicine & rehabilitation physician records in Washington.
All 462 in Washington → Every provider in Anacortes → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- Deborah Amos, MDAnacortes, WA 982211588732960
- Vanessa Nichols, LPTAAnacortes, WA 982211245928969
- Mark Cramer, DPTArlington, WA 982231962049221
- Steven English, M.D.Arlington, WA 982231679720171
- Tracy Ouellette, M.D.Bellingham, WA 982251841283918
- Niles Roberts, M.D.Bellingham, WA 982251568558765
- April Sakahara, MDBellingham, WA 982251730138389
- David Savage, DPTBellingham, WA 982251649610015
Common questions
What is Robert Gregg Billow, D.O.'s NPI number?
Robert Gregg Billow, D.O.'s National Provider Identifier (NPI) is 1689672552, issued on Jul 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert Gregg Billow, D.O. located?
The NPPES record lists a practice address at 2511 M Ave Ste C, Anacortes, WA, 98221. Phone: (360) 299-4929. Providers update this record themselves, so call before visiting.
How can I verify Robert Gregg Billow, D.O.'s license?
NPPES lists Washington license number OP00001735, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert Gregg Billow, D.O. prescribe under Medicare Part D?
In 2024, Robert Gregg Billow, D.O. had 1,744 Medicare Part D claims for 389 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. Part D covers Medicare prescriptions only.
What is Robert Gregg Billow, D.O.'s MIPS final score?
The 2023 MIPS final score is 82.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.