NPPES file of Aug 9, 2026

Vamsi Vemireddy

Internal Medicine Physician · Fountain Valley, CA

Vamsi Vemireddy is an internal medicine physician with a practice address in Fountain Valley, California, and NPI 1043848898, issued on Mar 28, 2020. Check the license (California A186499, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1043848898
Name
Vamsi Vemireddy
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A186499 CA
Self-reported in NPPES; status is on the state search
Practice location
17360 Brookhurst St., Fountain Valley, CA 92708
Phone
(877) 844-0012
Enumerated
Mar 28, 2020
Record last updated
Feb 3, 2025
Fax
(714) 665-4680
Medicare enrollment
Enrolled (PECOS I20230809002448); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 2020
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 17360 Brookhurst St.

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

  1. Michael Duan, MDInternal Medicine Physician1437737368
  2. Leonid Groysman, MDNeurocritical Care Physician1104076785
  3. Bianca Heilman, RDRegistered Dietitian1821615121
  4. Erin JoInternal Medicine Physician1841870177
  5. Martha KatauraRegistered Dietitian1881063121
  6. Andrew Rabenstein, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1841652385

Verify Vamsi Vemireddy in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A186499
    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

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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93% fewer Medicare Part D claims than the average internal medicine physician in 2024

208 Medicare Part D claims for 96 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 14 claims were for opioids.

  1. Vamsi Vemireddy208
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium14 claims
  2. Metoprolol Succinate13 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): 76.7 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.

  1. Qualityout of 100 · 30% of the final score80.9
  2. Costout of 100 · 30%55.1
  3. Promoting interoperabilityout of 100 · 25%78.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Memorialcare Medical FoundationFountain Valley, CA

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

Vamsi Vemireddy among 17,696 internal medicine physician records in California

Vamsi Vemireddy 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 2020, is newer than 89% of them.

  • NPI issued2020 · 89% of these records are older, 8% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2020 · median 2004 among the 11,065 with a school on file
  • Record last updated2025 · 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).

83 internal medicine physician records list a practice address in Fountain Valley

They are 83 of the 2,190 NPPES records with a practice address in Fountain Valley, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Joel Bartlett, MDFountain Valley, CA 927081073518791
  2. Ihong Chen, MDFountain Valley, CA 927081104822535
  3. Naomi Cheung, MDFountain Valley, CA 927081073503314
  4. Alan Dang, M.D.Fountain Valley, CA 927081043217359
  5. Alton ForanFountain Valley, CA 927081619968799
  6. George Hong, MDFountain Valley, CA 927081154328532
  7. Brandon Khaw, MDFountain Valley, CA 927081568453637
  8. Lalita Komanapalli, MDFountain Valley, CA 927081578560884

Common questions

What is Vamsi Vemireddy's NPI number?

Vamsi Vemireddy's National Provider Identifier (NPI) is 1043848898, issued on Mar 28, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Vamsi Vemireddy located?

The NPPES record lists a practice address at 17360 Brookhurst St., Fountain Valley, CA, 92708. Phone: (877) 844-0012. Providers update this record themselves, so call before visiting.

How can I verify Vamsi Vemireddy's license?

NPPES lists California license number A186499, 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 Vamsi Vemireddy prescribe under Medicare Part D?

In 2024, Vamsi Vemireddy had 208 Medicare Part D claims for 96 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Vamsi Vemireddy's MIPS final score?

The 2023 MIPS final score is 76.7 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.