NPPES file of Aug 9, 2026

Ryan Joseph Ferguson, DO

Pain Medicine (Physical Medicine & Rehabilitation) Physician · Union City, CA

Ryan Joseph Ferguson, DO is a pain medicine (physical medicine & rehabilitation) physician with a practice address in Union City, California, and NPI 1487116000, issued on Apr 2, 2019. Check the license (California 20A22376, 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
1487116000
Name
Ryan Joseph Ferguson
Credential
DO
Primary taxonomy
Pain Medicine (Physical Medicine & Rehabilitation) Physician 2081P2900X
License number
20A22376 CA
Self-reported in NPPES; status is on the state search
Practice location
3553 Whipple RD FL 2, Union City, CA 94587
Phone
(510) 675-3070
Enumerated
Apr 2, 2019
Record last updated
Jul 21, 2024
Medicare enrollment
Enrolled (PECOS I20240725003959); accepts Medicare assignment
Medical or professional school
Touro Un College Of Osteopathic Medicine, Vallejo, 2019
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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8 nearest pain medicine (physical medicine & rehabilitation) physician records → All 290 in California → Look up another NPI →

Also registered at 3553 Whipple RD FL 2

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

  1. Caroline Koo, MDPhysical Medicine & Rehabilitation Physician1093917254
  2. Anhthi Luong, AU.D.Audiologist1700409273
  3. Emerson Miller, AU.D.Audiologist1144109695

Verify Ryan Joseph Ferguson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A22376    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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95% fewer Medicare Part D claims than the average pain medicine (physical medicine & rehabilitation) physician in 2024

77 Medicare Part D claims for 42 beneficiaries, against an average of 1,479 among the 1,457 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Ryan Ferguson77
  2. Specialty average1,479

Most prescribed

  1. Gabapentin24 claims
  2. Meloxicam17 claims
  3. Tizanidine Hcl14 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.

Industry payments in 2024: $420.87

8 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 1,126 providers of this specialty with any payment received $2,193.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ryan Ferguson$420.87
  2. Specialty average$2,193.30

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Integrated Rehab Consultants California IncHayward, CA
  2. Permanente Medical Group IncUnion City, CA
  3. Sharwin Tafazoli IncCulver City, CA

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

Ryan Joseph Ferguson among 290 pain medicine (physical medicine & rehabilitation) physician records in California

Ryan Joseph Ferguson, DO is one of 290 pain medicine (physical medicine & rehabilitation) physician records with a practice address in California. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 90% of them.

  • NPI issued2019 · 90% of these records are older, 7% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2019 · median 2005 among the 196 with a school on file
  • Record last updated2024 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2081P2900X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pain Medicine (Physical Medicine & Rehabilitation) Physician providers in California

There are 290 pain medicine (physical medicine & rehabilitation) physician records in California.

All 290 in California → Every provider in Union City → Pain Medicine (Physical Medicine & Rehabilitation) Physician nationwide →

The 8 pain medicine (physical medicine & rehabilitation) physician records with the nearest ZIP codes

  1. Alan Kimelman, M.D.Vallejo, CA 945901558474866
  2. James HanSan Ramon, CA 945831013073030
  3. Kareem Hubbard, MDSan Leandro, CA 945781922327097
  4. Jorge Kim, MDSan Leandro, CA 945781982863759
  5. Mikiko Murakami, DOWalnut Creek, CA 945971659632339
  6. Michael Chang, D.O.Walnut Creek, CA 945981205934262
  7. David Chow, M.D.Walnut Creek, CA 945981700823762
  8. Carl Fieser, M.D.Walnut Creek, CA 945981346515319

Common questions

What is Ryan Joseph Ferguson, DO's NPI number?

Ryan Joseph Ferguson, DO's National Provider Identifier (NPI) is 1487116000, issued on Apr 2, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Ryan Joseph Ferguson, DO located?

The NPPES record lists a practice address at 3553 Whipple RD FL 2, Union City, CA, 94587. Phone: (510) 675-3070. Providers update this record themselves, so call before visiting.

How can I verify Ryan Joseph Ferguson, DO's license?

NPPES lists California license number 20A22376, 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 Ryan Joseph Ferguson, DO prescribe under Medicare Part D?

In 2024, Ryan Joseph Ferguson, DO had 77 Medicare Part D claims for 42 beneficiaries; the average among pain medicine (physical medicine & rehabilitation) physician prescribers was 1,479. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.