Glyn Marsh, M.D.
NPI 1316031255 · Physical Medicine & Rehabilitation Physician · Walla Walla, WA
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Glyn Marsh, M.D. is a Physical Medicine & Rehabilitation Physician provider in Walla Walla, WA (NPI 1316031255).
Provider details
- NPI number
- 1316031255
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD00046815 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
536 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 109 | $178 |
| Needle Measurement of Electrical Activity in Muscle With Injection of Chemical for Paralysis of Nerve Muscle95874 | 84 | $75 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 67 | $126 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 55 | $219 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 48 | $97 |
| Injection of Chemical for Paralysis of Facial and Neck Nerve Muscles on Both Sides of Face |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Duloxetine Hcl | 40 | 16 |
| Erenumab-Aooebrand: Aimovig Autoinjector | 31 | — |
| Rimegepant Sulfatebrand: Nurtec Odt | 15 | — |
| Gabapentin | 14 | — |
| Baclofen | 13 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (2)
- 401 W Poplar StWalla Walla, WA 99362-2846Phone: (509) 897-8306Fax: (509) 897-5788
- 1470 N 16th AveYakima, WA 98902-1381Phone: (509) 574-3300
Registry dates
- Enumerated
- 2006-10-03
- Last updated
- 2021-06-17
- Certified
- 2021-06-17
Frequently asked questions
- What is Glyn Marsh's NPI number?
- Glyn Marsh's National Provider Identifier (NPI) is 1316031255, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Glyn Marsh's specialty?
- Glyn Marsh is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is Glyn Marsh located?
- Glyn Marsh's practice location on file with NPPES is 301 W Poplar St Ste 220, Walla Walla, WA 99362-2800.
- What is Glyn Marsh's phone number?
- The practice phone number listed in the NPPES registry for Glyn Marsh is (509) 897-8959.
- Does Glyn Marsh accept Medicare?
- Glyn Marsh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Glyn Marsh's NPI active?
- Yes — Glyn Marsh's NPI (1316031255) is active in the NPPES registry as of the last update on 2021-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.