NPPES file of Aug 9, 2026

Nicholas Taylor, D.O.

Internal Medicine Physician · Vallejo, CA

Nicholas Taylor, D.O. is an internal medicine physician with a practice address in Vallejo, California, and NPI 1689053720, issued on May 21, 2015. Check the license (California 20A16451, 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
1689053720
Name
Nicholas Taylor
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
20A16451 CA
Self-reported in NPPES; status is on the state search
Practice location
300 Hospital Dr, Vallejo, CA 94589
Phone
(707) 554-4444
Enumerated
May 21, 2015
Record last updated
Jul 11, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180725003314); 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 300 Hospital Dr

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

  1. Ian Ahwah, M.D.Emergency Medicine Physician1699795146
  2. Robert Anderson, M.D.Internal Medicine Physician1265454623
  3. Richard Bell, MDNeonatal-Perinatal Medicine Physician1922161298
  4. Walter Berkheimer, MDNeonatal-Perinatal Medicine Physician1386707669
  5. Michael Brodsky, M.D.Diagnostic Radiology Physician1497781348
  6. Ian Chuang, M.D.Emergency Medicine Physician1386650521

Verify Nicholas Taylor in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A16451
    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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84% fewer Medicare Part D claims than the average internal medicine physician in 2024

515 Medicare Part D claims for 159 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 43 claims were for opioids.

  1. Nicholas Taylor515
  2. Specialty average3,176

Most prescribed

  1. Cefuroxime26 claims
  2. Prednisone24 claims
  3. Hydrocodone-Acetaminophen23 claims
  4. Azithromycin22 claims
  5. Pantoprazole Sodium21 claims
  6. Furosemide17 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 MIPS final score for 2023 (Medicare payment program): 49.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score28.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

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

Bills Medicare through one group practice

  1. Quantum Healthcare Medical Associates IncVallejo, CA

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

Nicholas Taylor among 17,696 internal medicine physician records in California

Nicholas Taylor, D.O. 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 updated2018 · 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).

64 internal medicine physician records list a practice address in Vallejo

They are 64 of the 2,836 NPPES records with a practice address in Vallejo, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Robert Anderson, M.D.Vallejo, CA 945891265454623
  2. Richard Chesley, MDVallejo, CA 945891760560585
  3. Jonathan Kaner, MDVallejo, CA 945891457439358
  4. Kelvin Kay, M.D.Vallejo, CA 945891588778542
  5. Aye Kyu, MDVallejo, CA 945891255430005
  6. Becky Lee, MDVallejo, CA 945891487732376
  7. Scarlet McClure, MDVallejo, CA 945891033176979
  8. Lechi Pham, MDVallejo, CA 945891467530287

Common questions

What is Nicholas Taylor, D.O.'s NPI number?

Nicholas Taylor, D.O.'s National Provider Identifier (NPI) is 1689053720, issued on May 21, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Nicholas Taylor, D.O. located?

The NPPES record lists a practice address at 300 Hospital Dr, Vallejo, CA, 94589. Phone: (707) 554-4444. Providers update this record themselves, so call before visiting.

How can I verify Nicholas Taylor, D.O.'s license?

NPPES lists California license number 20A16451, 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 Nicholas Taylor, D.O. prescribe under Medicare Part D?

In 2024, Nicholas Taylor, D.O. had 515 Medicare Part D claims for 159 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Nicholas Taylor, D.O.'s MIPS final score?

The 2023 MIPS final score is 49.1 of 100. 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.