Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Robert Gregg Billow, DO

Individual provider Physical Medicine & Rehabilitation Physician · NPI 1689672552

Robert Gregg Billow, DO is registered under Physical Medicine and Rehabilitation in Anacortes, Washington. Qualified in 1997, 29 years ago. Practices with Public Hospital District No 2 Skagit County Washington, a 76-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
29
Licensed in
WA
In the registry since
2005
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

2511 M Ave Ste C
Anacortes, WA 98221-3897
Phone: (360) 299-4929
Fax: (360) 299-4930
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physical Medicine & Rehabilitation Physician (primary) Taxonomy 208100000X · Licence OP00001735 (WA)

Record details

NPI number1689672552
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 13, 2005
Last updated in NPPESAugust 5, 2022
Certification dateAugust 5, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICAL MEDICINE AND REHABILITATION
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Public Hospital District No 2 Skagit County Washington — 76 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients434
Services billed 1,794 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Public Hospital District No 2 Skagit County Washington

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 76 clinicians in the practice; 12 are shown here.

Other providers in Anacortes