NPPES file of Aug 9, 2026

Alda Sofia Chavez, MD

Internal Medicine Physician · Chula Vista, CA

Alda Sofia Chavez, MD is an internal medicine physician with a practice address in Chula Vista, California, and NPI 1922782002, issued on Jun 9, 2023. Check the license (California A206356, 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
1922782002
Name
Alda Sofia Chavez
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A206356 CA
Self-reported in NPPES; status is on the state search
Practice location
296 H St Ste 201, Chula Vista, CA 91910
Phone
(619) 755-5908
Enumerated
Jun 9, 2023
Record last updated
Jul 31, 2026
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 296 H St Ste 201

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

  1. Rocio Flores, MDInternal Medicine Physician1881607067

Verify Alda Sofia Chavez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A206356
    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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96% fewer Medicare Part D claims than the average internal medicine physician in 2024

112 Medicare Part D claims for 29 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Alda Chavez112
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium17 claims
  2. Amlodipine Besylate13 claims
  3. Metformin Hcl12 claims
  4. Losartan Potassium11 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.

Alda Sofia Chavez among 17,696 internal medicine physician records in California

Alda Sofia Chavez, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 98% of them.

  • NPI issued2023 · 98% of these records are older, under 1% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2026 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

81 internal medicine physician records list a practice address in Chula Vista

They are 81 of the 5,329 NPPES records with a practice address in Chula Vista, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Andres BustamanteChula Vista, CA 919101720199227
  2. Michael Chambers, M.D.Chula Vista, CA 919101740298843
  3. Rocio Flores, MDChula Vista, CA 919101881607067
  4. Hector Heredia-Martinez, M.D.Chula Vista, CA 919101699882365
  5. Alejandro Hinojosa-Valencia, MDChula Vista, CA 919101083701411
  6. Tom-Oliver Klein, MDChula Vista, CA 919101235161787
  7. Perry Montoya, M.DChula Vista, CA 919101003826256
  8. Taikeun Park, MDChula Vista, CA 919101831175918

Common questions

What is Alda Sofia Chavez, MD's NPI number?

Alda Sofia Chavez, MD's National Provider Identifier (NPI) is 1922782002, issued on Jun 9, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Alda Sofia Chavez, MD located?

The NPPES record lists a practice address at 296 H St Ste 201, Chula Vista, CA, 91910. Phone: (619) 755-5908. Providers update this record themselves, so call before visiting.

How can I verify Alda Sofia Chavez, MD's license?

NPPES lists California license number A206356, 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 Alda Sofia Chavez, MD prescribe under Medicare Part D?

In 2024, Alda Sofia Chavez, MD had 112 Medicare Part D claims for 29 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.