NPPES file of Aug 9, 2026

Ritchie Wong, M.D.

Family Medicine Physician · Carmichael, CA

Ritchie Wong, M.D. is a family medicine physician with a practice address in Carmichael, California, and NPI 1821054552, issued on Apr 21, 2006. Check the license (California G34923, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821054552
Name
Ritchie Wong
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
G34923 CA
Self-reported in NPPES; status is on the state search
Practice location
3650 Mission Ave, Carmichael, CA 95608
Phone
(916) 972-0882
Enumerated
Apr 21, 2006
Record last updated
Nov 26, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(916) 972-0649
Medicaid ID
G34923 CA
Medicare enrollment
Enrolled (PECOS I20060509000514); accepts Medicare assignment
Medical or professional school
University Of California, San Francisco School Of Medicine, 1976
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 3650 Mission Ave

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

  1. Elisa Wong, B.S., PA-CMedical Physician Assistant1174589931

Verify Ritchie Wong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G34923
    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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28% more Medicare Part D claims than the average family medicine physician in 2024

4,547 Medicare Part D claims for 306 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 138 claims were for opioids.

  1. Ritchie Wong4,547
  2. Specialty average3,544

Most prescribed

  1. Rosuvastatin Calcium304 claims
  2. Lisinopril238 claims
  3. Hydrochlorothiazide237 claims
  4. Amlodipine Besylate236 claims
  5. Atorvastatin Calcium194 claims
  6. Levothyroxine Sodium171 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 95.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score95.5
  2. Costout of 100 · 30%88.3
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $310.88

9 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ritchie Wong$310.88
  2. Specialty average$902.55

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

Bills Medicare through one group practice

  1. Ritchie Wong MD IncCarmichael, CA

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

Ritchie Wong among 17,133 family medicine physician records in California

Ritchie Wong, 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
  • Graduated1976 · median 2005 among the 10,652 with a school on file
  • Record last updated2012 · 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).

21 family medicine physician records list a practice address in Carmichael

They are 21 of the 1,440 NPPES records with a practice address in Carmichael, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Frances Ada, M.D.Carmichael, CA 956081598709123
  2. Frances Broddrick, M.D.Carmichael, CA 956081649227885
  3. Ying Brown, M.D.Carmichael, CA 956081407063357
  4. John Champlin, M.D.Carmichael, CA 956081891865408
  5. Harold Ewing, PACarmichael, CA 956081811067317
  6. Reinhardt Hilzinger, M.D.Carmichael, CA 956081255436044
  7. Leonard Magnani, M.D., PH.D.Carmichael, CA 956081699866632
  8. Anna Petrovich, D.O.Carmichael, CA 956081245331537

Common questions

What is Ritchie Wong, M.D.'s NPI number?

Ritchie Wong, M.D.'s National Provider Identifier (NPI) is 1821054552, issued on Apr 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ritchie Wong, M.D. located?

The NPPES record lists a practice address at 3650 Mission Ave, Carmichael, CA, 95608. Phone: (916) 972-0882. Providers update this record themselves, so call before visiting.

How can I verify Ritchie Wong, M.D.'s license?

NPPES lists California license number G34923, 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 Ritchie Wong, M.D. prescribe under Medicare Part D?

In 2024, Ritchie Wong, M.D. had 4,547 Medicare Part D claims for 306 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Ritchie Wong, M.D.'s MIPS final score?

The 2023 MIPS final score is 95.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.