Shannon Dawn Chain, MD
Physical Medicine & Rehabilitation Physician · Petaluma, CA
Shannon Dawn Chain, MD is a physical medicine & rehabilitation physician with a practice address in Petaluma, California, and NPI 1447575428, issued on Apr 1, 2010. Check the license (California A140657, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Shannon Dawn Chain
- Credential
- MD
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License numbers
- A140657 CA
MD166551 OR
Self-reported in NPPES; status is on the state search - Practice location
- 346 Lakeville Cir, Petaluma, CA 94954
- Phone
- (628) 233-3013
- Enumerated
- Apr 1, 2010
- Record last updated
- Jan 10, 2022
- Medicare enrollment
- Enrolled (PECOS I20160405000494); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 1,549 in California → Look up another NPI →
Verify Shannon Dawn Chain in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A140657Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average physical medicine & rehabilitation physician in 2024
1,637 Medicare Part D claims for 410 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D. 20 claims were for opioids.
Most prescribed
- Gabapentin495 claims
- Pregabalin340 claims
- Baclofen169 claims
- Meloxicam164 claims
- Duloxetine Hcl156 claims
- Diazepam72 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.
Bills Medicare through one group practice
- Permanente Medical Group IncSan Rafael, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shannon Dawn Chain among 1,549 physical medicine & rehabilitation physician records in California
Shannon Dawn Chain, MD is one of 1,549 physical medicine & rehabilitation physician records with a practice address in California. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 47% of them.
- NPI issued2010 · 47% of these records are older, 50% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated2010 · median 2008 among the 786 with a school on file
- Record last updated2022 · 59% 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 California 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 California
There are 1,549 physical medicine & rehabilitation physician records in California.
All 1,549 in California → Every provider in Petaluma → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- Diane Murray, MDPetaluma, CA 949541174607154
- Cristie Bennett, P.T.Novato, CA 949451104153360
- Holly Kelly, MDNovato, CA 949451619076528
- Brooke Bennis, D.O.Mill Valley, CA 949411811169683
- Marsha Guisard, MDMill Valley, CA 949411629194121
- Ernest Sponzilli, M.D.Larkspur, CA 949391497709984
- Madeleine Alfiero, DPTFairfax, CA 949301710503024
- Alex Barchuk, M.D.Kentfield, CA 949041851315774
Common questions
What is Shannon Dawn Chain, MD's NPI number?
Shannon Dawn Chain, MD's National Provider Identifier (NPI) is 1447575428, issued on Apr 1, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Shannon Dawn Chain, MD located?
The NPPES record lists a practice address at 346 Lakeville Cir, Petaluma, CA, 94954. Phone: (628) 233-3013. Providers update this record themselves, so call before visiting.
How can I verify Shannon Dawn Chain, MD's license?
NPPES lists California license number A140657, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Shannon Dawn Chain, MD prescribe under Medicare Part D?
In 2024, Shannon Dawn Chain, MD had 1,637 Medicare Part D claims for 410 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. 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.