NPPES file of Aug 9, 2026

Shawna Cara Riddle, MD

Family Medicine Physician · Santa Cruz, CA

Shawna Cara Riddle, MD is a family medicine physician with a practice address in Santa Cruz, California, and NPI 1578727152, issued on Jul 14, 2008. Check the license (California A101699, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1578727152
Name
Shawna Cara Riddle
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A101699 CA
Self-reported in NPPES; status is on the state search
Practice location
115 Locust St, Santa Cruz, CA 95060
Phone
(831) 458-5670
Enumerated
Jul 14, 2008
Record last updated
Apr 21, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20101228000645); accepts Medicare assignment
Medical or professional school
University Of Cincinnati College Of Medicine, 2006
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 115 Locust St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Josee Belanger, MDFamily Medicine Physician1437261989
  2. Gealina Dun-Melli, MDFamily Medicine Physician1942657697
  3. Matthew Houlahan, M.D.Family Medicine Physician1679883979
  4. Michelle Massie, MDFamily Medicine Physician1467432963
  5. Jilian O'BrienMarriage & Family Therapist1962985705
  6. Jennifer SchreckFamily Medicine Physician1477533701

Verify Shawna Cara Riddle in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A101699
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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8% more Medicare Part D claims than the average family medicine physician in 2024

3,817 Medicare Part D claims for 330 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 137 claims were for opioids.

  1. Shawna Riddle3,817
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium252 claims
  2. Levothyroxine Sodium195 claims
  3. Lisinopril169 claims
  4. Gabapentin156 claims
  5. Losartan Potassium123 claims
  6. Amlodipine Besylate103 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

  1. Sutter Bay Medical FoundationSanta Cruez, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Shawna Cara Riddle among 17,133 family medicine physician records in California

Shawna Cara Riddle, 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 2008, is newer than 53% of them.

  • NPI issued2008 · 53% of these records are older, 42% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2006 · median 2005 among the 10,652 with a school on file
  • Record last updated2014 · 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).

114 family medicine physician records list a practice address in Santa Cruz

They are 114 of the 5,138 NPPES records with a practice address in Santa Cruz, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Josee Belanger, MDSanta Cruz, CA 950601437261989
  2. Flavio Cornejo, DOSanta Cruz, CA 950601285734327
  3. Michael Coulson, MDSanta Cruz, CA 950601790869238
  4. Maria Greaves, M.D.Santa Cruz, CA 950601467484154
  5. Jennifer Hastings, M.D.Santa Cruz, CA 950601861505927
  6. Rose Marie Hendrix, DOSanta Cruz, CA 950601629078415
  7. Whay Jones, MDSanta Cruz, CA 950601952301020
  8. Miki Joy, M.D.Santa Cruz, CA 950601134122922

Common questions

What is Shawna Cara Riddle, MD's NPI number?

Shawna Cara Riddle, MD's National Provider Identifier (NPI) is 1578727152, issued on Jul 14, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Shawna Cara Riddle, MD located?

The NPPES record lists a practice address at 115 Locust St, Santa Cruz, CA, 95060. Phone: (831) 458-5670. Providers update this record themselves, so call before visiting.

How can I verify Shawna Cara Riddle, MD's license?

NPPES lists California license number A101699, 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 Shawna Cara Riddle, MD prescribe under Medicare Part D?

In 2024, Shawna Cara Riddle, MD had 3,817 Medicare Part D claims for 330 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.