Shannon Chain, MD
NPI 1447575428 · Physical Medicine & Rehabilitation Physician · Petaluma, CA
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shannon Chain, MD is a Physical Medicine & Rehabilitation Physician provider in Petaluma, CA (NPI 1447575428).
Provider details
- NPI number
- 1447575428
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A140657 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 495 | 150 |
| Pregabalin | 340 | 88 |
| Baclofen | 169 | 47 |
| Meloxicam | 164 | 58 |
| Duloxetine Hcl | 156 | 43 |
| Diazepam | 72 | 58 |
| Prednisone | 39 | 36 |
Practice location
Mailing address
Additional practice locations (1)
- 2780 E Barnett RdMedford, OR 97504-8674Phone: (541) 776-5065
Registry dates
- Enumerated
- 2010-04-01
- Last updated
- 2022-01-10
Frequently asked questions
- What is Shannon Chain's NPI number?
- Shannon Chain's National Provider Identifier (NPI) is 1447575428, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shannon Chain's specialty?
- Shannon Chain is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is Shannon Chain located?
- Shannon Chain's practice location on file with NPPES is 346 Lakeville Cir, Petaluma, CA 94954-5723.
- What is Shannon Chain's phone number?
- The practice phone number listed in the NPPES registry for Shannon Chain is (628) 233-3013.
- Does Shannon Chain accept Medicare?
- Shannon Chain is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shannon Chain's NPI active?
- Yes — Shannon Chain's NPI (1447575428) is active in the NPPES registry as of the last update on 2022-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.