NPPES file of Aug 9, 2026

Christine Davis

Internal Medicine Physician · Chula Vista, CA

Christine Davis is an internal medicine physician with a practice address in Chula Vista, California, and NPI 1669857488, issued on Jul 22, 2015. Check the license (California 20A23287, 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
1669857488
Name
Christine Davis
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
20A23287 CA
Self-reported in NPPES; status is on the state search
Practice location
450 4TH Ave Ste 301, Chula Vista, CA 91910
Phone
(619) 271-7824
Enumerated
Jul 22, 2015
Record last updated
Dec 18, 2024
Medicare enrollment
Enrolled (PECOS I20240923000227); accepts Medicare assignment
Medical or professional school
Lake Erie College Of Osteopathic Medicine, Erie, 2015
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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Verify Christine Davis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A23287
    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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83% fewer Medicare Part D claims than the average internal medicine physician in 2024

553 Medicare Part D claims for 161 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 22 claims were for opioids.

  1. Christine Davis553
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium27 claims
  2. Gabapentin19 claims
  3. Lisinopril17 claims
  4. Losartan Potassium17 claims
  5. Triamterene-Hydrochlorothiazid17 claims
  6. Metformin Hcl16 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. Ajay G Meka MD IncNational City, CA

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

Christine Davis among 17,696 internal medicine physician records in California

Christine Davis 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 2015, is newer than 76% of them.

  • NPI issued2015 · 76% of these records are older, 21% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2015 · median 2004 among the 11,065 with a school on file
  • Record last updated2024 · 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 Christine Davis's NPI number?

Christine Davis's National Provider Identifier (NPI) is 1669857488, issued on Jul 22, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Christine Davis located?

The NPPES record lists a practice address at 450 4TH Ave Ste 301, Chula Vista, CA, 91910. Phone: (619) 271-7824. Providers update this record themselves, so call before visiting.

How can I verify Christine Davis's license?

NPPES lists California license number 20A23287, 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 Christine Davis prescribe under Medicare Part D?

In 2024, Christine Davis had 553 Medicare Part D claims for 161 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.