Roger Quach, DO
Family Medicine Physician · Merced, CA
Roger Quach, DO is a family medicine physician with a practice address in Merced, California, and NPI 1023508421, issued on May 11, 2018. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Roger Quach
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- Practice location
- 315 Mercy Ave Ste 400, Merced, CA 95340
- Phone
- (209) 564-3700
- Enumerated
- May 11, 2018
- Entity
- Type 1 · individual
Also registered at 315 Mercy Ave Ste 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shabana Abdulqadir, NPFamily Nurse Practitioner1184372047
- Nadir Adam, MDSurgery Physician1760747398
- George Alkhouri, MDObstetrics & Gynecology Physician1881862209
- Dinesh Chhaganlal, MDFamily Medicine Physician1649382698
- Garima Handa, MDCardiovascular Disease Physician1518313410
- Roderick Harris, M.D.Urology Physician1801089727
Verify Roger Quach in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
14% more Medicare Part D claims than the average family medicine physician in 2024
4,024 Medicare Part D claims for 331 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 92 claims were for opioids.
Most prescribed
- Atorvastatin Calcium254 claims
- Gabapentin149 claims
- Lisinopril123 claims
- Amlodipine Besylate115 claims
- Losartan Potassium104 claims
- Levothyroxine Sodium101 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 Medicare quality score for 2023: 96.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $62.85
2 payments, mostly food and beverage; the largest payer was Hologic Sales and Service, LLC. The 53,013 providers of this specialty with any payment received $861.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital or facility affiliation
- Dignity Health Medical FoundationMerced, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
89 family medicine physician records list a Merced practice address
They are 89 of the 2,836 NPPES records with a Merced practice address, and 16,272 family medicine physician records in California.
All 89 in Merced → All 16,272 in California → Every provider in Merced →
Other family medicine physician records in California
- Omer Aba-Omer, MDSanta Monica, CA1649702093
- Michelle Ababa, MDWilmington, CA1710922513
- Anna Tzeitel Abalos, MDRoseville, CA1720200017
- Adan Abarca, MDAnaheim, CA1760553689
- Vanessa Abarca, DOVentura, CA1952040859
- Lorraine Abate, M.D.Sacramento, CA1104840008
- Robert Abatecola, MDCastro Valley, CA1669551719
- Romeo Abaya, M.D.Cottonwood, CA1598053506
- Effiem Abbah, MD, MPHSan Francisco, CA1821185133
- Khuzeman Abbasi, MDSanta Rosa, CA1841979952
Common questions
What is Roger Quach, DO's NPI number?
Roger Quach, DO's National Provider Identifier (NPI) is 1023508421, issued on May 11, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Roger Quach, DO located?
The NPPES record lists a practice address at 315 Mercy Ave Ste 400, Merced, CA, 95340. Phone: (209) 564-3700. Providers update this record themselves, so call before visiting.
How can I verify Roger Quach, DO's license?
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 Roger Quach, DO prescribe under Medicare Part D?
In 2024, Roger Quach, DO had 4,024 Medicare Part D claims for 331 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
What is Roger Quach, DO's Medicare quality score?
The 2023 MIPS final score is 96.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.