Michael Richard Portillo, M.D.
Family Medicine Physician · Sonora, CA
Michael Richard Portillo, M.D. is a family medicine physician with a practice address in Sonora, California, and NPI 1306235957, issued on Jan 21, 2015. Check the license (California A144432, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Richard Portillo
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A144432 CA
Self-reported in NPPES; status is on the state search - Practice location
- 680 Guzzi LN Ste 106, Sonora, CA 95370
- Phone
- (209) 536-5770
- Enumerated
- Jan 21, 2015
- Record last updated
- Dec 14, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (209) 536-3596
- Medicare enrollment
- Enrolled (PECOS I20171121001297); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Michael Richard Portillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A144432Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average family medicine physician in 2024
11,295 Medicare Part D claims for 785 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 694 claims were for opioids.
Most prescribed
- Atorvastatin Calcium767 claims
- Lisinopril531 claims
- Levothyroxine Sodium397 claims
- Amlodipine Besylate366 claims
- Losartan Potassium359 claims
- Omeprazole295 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): 79.2 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $233.56
12 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
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
- Sonora Community HospitalSonora, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Richard Portillo among 17,133 family medicine physician records in California
Michael Richard Portillo, 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 2015, is newer than 74% of them.
- NPI issued2015 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2012 · median 2005 among the 10,652 with a school on file
- Record last updated2017 · 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).
16 family medicine physician records list a practice address in Sonora
They are 16 of the 629 NPPES records with a practice address in Sonora, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Sonora → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Zachary Barlow, MDSonora, CA 953701013584127
- Ryan Carey, D.O.Sonora, CA 953701790132256
- Edward Clinite, D.O.Sonora, CA 953701134109010
- Stacey Hoffmann, M.D.Sonora, CA 953701699854943
- Mayline Nambela-Barlow, MDSonora, CA 953701245734136
- Matthew Personius, M.D.Sonora, CA 953701528022712
- Robert Reina, M.D.Sonora, CA 953701295739845
- Ralph Retherford, M.D.Sonora, CA 953701801043799
Common questions
What is Michael Richard Portillo, M.D.'s NPI number?
Michael Richard Portillo, M.D.'s National Provider Identifier (NPI) is 1306235957, issued on Jan 21, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Michael Richard Portillo, M.D. located?
The NPPES record lists a practice address at 680 Guzzi LN Ste 106, Sonora, CA, 95370. Phone: (209) 536-5770. Providers update this record themselves, so call before visiting.
How can I verify Michael Richard Portillo, M.D.'s license?
NPPES lists California license number A144432, 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 Michael Richard Portillo, M.D. prescribe under Medicare Part D?
In 2024, Michael Richard Portillo, M.D. had 11,295 Medicare Part D claims for 785 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Michael Richard Portillo, M.D.'s MIPS final score?
The 2023 MIPS final score is 79.2 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.