NPPES file of Aug 9, 2026

John Daerin Ro, M.D.

Family Medicine Physician · Torrance, CA

John Daerin Ro, M.D. is a family medicine physician with a practice address in Torrance, California, and NPI 1780620021, issued on Jun 22, 2006. Check the license (California A054681, 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
1780620021
Name
John Daerin Ro
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A054681 CA
Self-reported in NPPES; status is on the state search
Practice location
2200 Sepulveda Blvd, Torrance, CA 90501
Phone
(310) 326-9167
Enumerated
Jun 22, 2006
Record last updated
Jan 7, 2026
Medicare enrollment
Enrolled (PECOS I20040430001359); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 1994
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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8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →

Also registered at 2200 Sepulveda Blvd

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

  1. Brian Borsook, M.D.Family Medicine Physician1437165370
  2. Nasim Golzar, M.D.Family Medicine Physician1568406866
  3. Alese HernandezPrimary Care Nurse Practitioner1164039012
  4. Susana Herrera Ovalle, M.D.Family Medicine Physician1437375268
  5. Fe Inocentes, M.D.Family Medicine Physician1851306542
  6. John Lim, MDInternal Medicine Physician1316329782

Verify John Daerin Ro in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A054681    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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2.2 times the Medicare Part D claims of the average family medicine physician in 2024

7,939 Medicare Part D claims for 747 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 186 claims were for opioids.

  1. John Ro7,939
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium683 claims
  2. Amlodipine Besylate356 claims
  3. Rosuvastatin Calcium327 claims
  4. Losartan Potassium311 claims
  5. Lisinopril279 claims
  6. Levothyroxine Sodium217 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. Healthcare Partners Affiliates Medical GroupTorrance, CA

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

John Daerin Ro among 17,133 family medicine physician records in California

John Daerin Ro, M.D. 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1994 · median 2005 among the 10,652 with a school on file
  • Record last updated2026 · 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 Torrance

They are 114 of the 8,901 NPPES records with a practice address in Torrance, and 17,133 family medicine physician records in California.

All 17,133 in California → Every provider in Torrance → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Ludmila Afonicheva, MDTorrance, CA 905011932159530
  2. Brian Borsook, M.D.Torrance, CA 905011437165370
  3. Nasim Golzar, M.D.Torrance, CA 905011568406866
  4. Homer Hernandez, M.D.Torrance, CA 905011760457576
  5. Susana Herrera Ovalle, M.D.Torrance, CA 905011437375268
  6. Fe Inocentes, M.D.Torrance, CA 905011851306542
  7. Michelle Mohageg, DOTorrance, CA 905011134288798
  8. Jonathan Neal, D.OTorrance, CA 905011073628434

Common questions

What is John Daerin Ro, M.D.'s NPI number?

John Daerin Ro, M.D.'s National Provider Identifier (NPI) is 1780620021, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Daerin Ro, M.D. located?

The NPPES record lists a practice address at 2200 Sepulveda Blvd, Torrance, CA, 90501. Phone: (310) 326-9167. Providers update this record themselves, so call before visiting.

How can I verify John Daerin Ro, M.D.'s license?

NPPES lists California license number A054681, 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 John Daerin Ro, M.D. prescribe under Medicare Part D?

In 2024, John Daerin Ro, M.D. had 7,939 Medicare Part D claims for 747 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.

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.