NPPES file of Aug 9, 2026

Marissa Esguerra Reyes, M.D.

Family Medicine Physician · Sacramento, CA

Marissa Esguerra Reyes, M.D. is a family medicine physician with a practice address in Sacramento, California, and NPI 1679695944, issued on Apr 5, 2007. Check the license 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
1679695944
Name
Marissa Esguerra Reyes
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
11012225A IN
Self-reported in NPPES; status is on the state search
Practice location
2345 Fair Oaks Blvd, Sacramento, CA 95825
Phone
(916) 973-5000
Enumerated
Apr 5, 2007
Record last updated
Dec 9, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20080129000491); accepts Medicare assignment
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 2345 Fair Oaks Blvd

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

  1. Monet Adams, RRT, RPSGTRegistered Respiratory Therapist1811561939
  2. Kevin Archuleta, LCSWClinical Social Worker1154862571
  3. Sarah Ashton, NPFamily Nurse Practitioner1912075938
  4. Dalisay Banaria, RCPRegistered Respiratory Therapist1770100240
  5. Deshawn BurnellOccupational Therapist1376060343
  6. Patrick Chan, RPHPharmacist1346667698

Verify Marissa Esguerra Reyes in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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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81% fewer Medicare Part D claims than the average family medicine physician in 2024

691 Medicare Part D claims for 261 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.

  1. Marissa Reyes691
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium99 claims
  2. Losartan Potassium37 claims
  3. Levothyroxine Sodium32 claims
  4. Metoprolol Tartrate31 claims
  5. Amlodipine Besylate30 claims
  6. Famotidine28 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. Permanente Medical Group IncRoseville, CA

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

Marissa Esguerra Reyes among 17,133 family medicine physician records in California

Marissa Esguerra Reyes, 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 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 47% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2000 · median 2005 among the 10,652 with a school on file
  • Record last updated2021 · 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).

473 family medicine physician records list a practice address in Sacramento

They are 473 of the 33,083 NPPES records with a practice address in Sacramento, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Alan Anzai, MDSacramento, CA 958251710065420
  2. Peter Ash, MDSacramento, CA 958251629156385
  3. Rebecca Chinn, MDSacramento, CA 958251528172640
  4. Stuart Hahn, MDSacramento, CA 958251447336979
  5. Kimberly Laurenson, MDSacramento, CA 958251801974514
  6. Benjamin Leavy, M.D.Sacramento, CA 958251710960307
  7. Nuzhat Majid, MDSacramento, CA 958251073578225
  8. Donald Martin, M.D.Sacramento, CA 958251194708925

Common questions

What is Marissa Esguerra Reyes, M.D.'s NPI number?

Marissa Esguerra Reyes, M.D.'s National Provider Identifier (NPI) is 1679695944, issued on Apr 5, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Marissa Esguerra Reyes, M.D. located?

The NPPES record lists a practice address at 2345 Fair Oaks Blvd, Sacramento, CA, 95825. Phone: (916) 973-5000. Providers update this record themselves, so call before visiting.

How can I verify Marissa Esguerra Reyes, M.D.'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 Marissa Esguerra Reyes, M.D. prescribe under Medicare Part D?

In 2024, Marissa Esguerra Reyes, M.D. had 691 Medicare Part D claims for 261 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.

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.