Shannon Mentock, MD
Family Medicine Physician · Petaluma, CA
Shannon Mentock, MD is a family medicine physician with a practice address in Petaluma, California, and NPI 1104353796, issued on May 15, 2017. Check the license (California 174978, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Shannon Mentock
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 174978 CA
DR.0063003 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1179 N Mcdowell Blvd, Petaluma, CA 94954
- Phone
- (707) 559-7500
- Enumerated
- May 15, 2017
- Record last updated
- Mar 21, 2022
- Fax
- (707) 559-7620
- Medicare enrollment
- Enrolled (PECOS I20200827000829); accepts Medicare assignment
- Medical or professional school
- Wake Forest University School Of Medicine, 2017
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1179 N Mcdowell Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Shannon Mentock in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 174978Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average family medicine physician in 2024
604 Medicare Part D claims for 71 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 19 claims were for opioids.
Most prescribed
- Atorvastatin Calcium56 claims
- Levothyroxine Sodium30 claims
- Gabapentin24 claims
- Lisinopril17 claims
- Amlodipine Besylate14 claims
- Omeprazole14 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
- Petaluma Health Center IncPetaluma, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shannon Mentock among 17,133 family medicine physician records in California
Shannon Mentock, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 79% of them.
- NPI issued2017 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2017 · median 2005 among the 10,652 with a school on file
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
46 family medicine physician records list a practice address in Petaluma
They are 46 of the 1,856 NPPES records with a practice address in Petaluma, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Petaluma → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Andrew Ashcroft, M.D.Petaluma, CA 949541053306795
- Richard Chen, MDPetaluma, CA 949541285602573
- Jonathan Choe, M.D.Petaluma, CA 949541518959170
- Michelle Davey, DOPetaluma, CA 949541366445785
- Patrick Flynn, M.D.Petaluma, CA 949541770567745
- Colleen Foy Sterling, M.D.Petaluma, CA 949541619969326
- Robert Hentz, MDPetaluma, CA 949541720012107
- Audra Lehman, M.D.Petaluma, CA 949541063404762
Common questions
What is Shannon Mentock, MD's NPI number?
Shannon Mentock, MD's National Provider Identifier (NPI) is 1104353796, issued on May 15, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Shannon Mentock, MD located?
The NPPES record lists a practice address at 1179 N Mcdowell Blvd, Petaluma, CA, 94954. Phone: (707) 559-7500. Providers update this record themselves, so call before visiting.
How can I verify Shannon Mentock, MD's license?
NPPES lists California license number 174978, 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 Mentock, MD prescribe under Medicare Part D?
In 2024, Shannon Mentock, MD had 604 Medicare Part D claims for 71 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.