Colbey Ricklefs, MD
Pediatric Adolescent Medicine Physician · San Francisco, CA
Colbey Ricklefs, MD is a pediatric adolescent medicine physician with a practice address in San Francisco, California, and NPI 1053948257, issued on Mar 26, 2020. Check the license (California A185610, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Colbey Ricklefs
- Credential
- MD
- Primary taxonomy
- Pediatric Adolescent Medicine Physician 2080A0000X
- License number
- A185610 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1975 4TH St, San Francisco, CA 94143
- Phone
- (415) 353-2002
- Enumerated
- Mar 26, 2020
- Record last updated
- Apr 22, 2026
- Medicare enrollment
- Enrolled (PECOS I20260505003479); may accept Medicare assignment
- Medical or professional school
- University Of Missouri, Columbia School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest pediatric adolescent medicine physician records → All 280 in California → Look up another NPI →
Also registered at 1975 4TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Colbey Ricklefs in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A185610Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average pediatric adolescent medicine physician in 2024
46 Medicare Part D claims for 13 beneficiaries, against an average of 148 among the 384 providers of this specialty who prescribed in Part D.
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.
Colbey Ricklefs among 280 pediatric adolescent medicine physician records in California
Colbey Ricklefs, MD is one of 280 pediatric adolescent medicine physician records with a practice address in California. 42% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 98% of them.
- NPI issued2020 · 98% of these records are older, under 1% newer
- In a Medicare fileYes · 42% of these records are
- In the CMS Doctors and Clinicians fileYes · 5% of these records are
- Graduated2020 · median 2007 among the 13 with a school on file
- Record last updated2026 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080A0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Adolescent Medicine Physician providers in California
There are 280 pediatric adolescent medicine physician records in California.
All 280 in California → Every provider in San Francisco → Pediatric Adolescent Medicine Physician nationwide →
The 8 pediatric adolescent medicine physician records with the nearest ZIP codes
- Colette Auerswald, M.D.San Francisco, CA 941431679519524
- Cynthia Kim, M.D.San Francisco, CA 941431518993450
- Anita Juvvadi, M.D.San Francisco, CA 941181457325797
- Josephine Lau, M.D.San Francisco, CA 941181669630711
- Stephen Rosenbaum, MDSan Francisco, CA 941181194838813
- Robert SaffaSan Francisco, CA 941181841203403
- Carolyn Wright, MDSan Francisco, CA 941181396757522
- Sanford Newmark, M.D.San Francisco, CA 941151184657082
Common questions
What is Colbey Ricklefs, MD's NPI number?
Colbey Ricklefs, MD's National Provider Identifier (NPI) is 1053948257, issued on Mar 26, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Colbey Ricklefs, MD located?
The NPPES record lists a practice address at 1975 4TH St, San Francisco, CA, 94143. Phone: (415) 353-2002. Providers update this record themselves, so call before visiting.
How can I verify Colbey Ricklefs, MD's license?
NPPES lists California license number A185610, 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 Colbey Ricklefs, MD prescribe under Medicare Part D?
In 2024, Colbey Ricklefs, MD had 46 Medicare Part D claims for 13 beneficiaries; the average among pediatric adolescent medicine physician prescribers was 148. 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.