NPPES file of Aug 9, 2026

Maryal Montemayor Concepcion, M.D.

Family Medicine Physician · Arnold, CA

Maryal Montemayor Concepcion, M.D. is a family medicine physician with a practice address in Arnold, California, and NPI 1548522071, issued on Jun 11, 2012. Check the license (California A129691, 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
1548522071
Name
Maryal Montemayor Concepcion
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A129691 CA
Self-reported in NPPES; status is on the state search
Practice location
2037 Hwy 4, Arnold, CA 95223
Phone
(209) 795-1270
Enumerated
Jun 11, 2012
Record last updated
Jan 26, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(209) 795-0155
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2037 Hwy 4

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

  1. Margaret Jacobs, FNP-PA-CFamily Nurse Practitioner1699747808

Verify Maryal Montemayor Concepcion in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A129691
    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

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89% fewer Medicare Part D claims than the average family medicine physician in 2024

401 Medicare Part D claims for 25 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Maryal Concepcion401
  2. Specialty average3,544

Most prescribed

  1. Rosuvastatin Calcium31 claims
  2. Atorvastatin Calcium25 claims
  3. Levothyroxine Sodium25 claims
  4. Losartan Potassium18 claims
  5. Alprazolam17 claims
  6. Gabapentin16 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.

Maryal Montemayor Concepcion among 17,133 family medicine physician records in California

Maryal Montemayor Concepcion, 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 2012, is newer than 66% of them.

  • NPI issued2012 · 66% of these records are older, 32% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2016 · 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).

2 family medicine physician records list a practice address in Arnold

They are 2 of the 23 NPPES records with a practice address in Arnold, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Jeremiah Fillo, M.D.Arnold, CA 952231275847360
  2. Paul Jacobson, M.D.Angels Camp, CA 952221720114598
  3. John Krpan, D.O.Angels Camp, CA 952221992700876
  4. Everardo Lopez, M.D.Angels Camp, CA 952221851379572
  5. Joann Rosenfeld, MDAngels Camp, CA 952221215031588
  6. Wilmer Garcia Ricardo, M.D.Stockton, CA 952191205496239
  7. Anureet Gill, MDStockton, CA 952191700041506
  8. Anita Heart, MDStockton, CA 952191720216179

Common questions

What is Maryal Montemayor Concepcion, M.D.'s NPI number?

Maryal Montemayor Concepcion, M.D.'s National Provider Identifier (NPI) is 1548522071, issued on Jun 11, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Maryal Montemayor Concepcion, M.D. located?

The NPPES record lists a practice address at 2037 Hwy 4, Arnold, CA, 95223. Phone: (209) 795-1270. Providers update this record themselves, so call before visiting.

How can I verify Maryal Montemayor Concepcion, M.D.'s license?

NPPES lists California license number A129691, 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 Maryal Montemayor Concepcion, M.D. prescribe under Medicare Part D?

In 2024, Maryal Montemayor Concepcion, M.D. had 401 Medicare Part D claims for 25 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.