NPPES file of Aug 9, 2026

Daniel James Thwaites, MD

Family Medicine Physician · Vallejo, CA

Daniel James Thwaites, MD is a family medicine physician with a practice address in Vallejo, California, and NPI 1598846362, issued on Oct 18, 2006. Check the license (California G75215, 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
1598846362
Name
Daniel James Thwaites
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
G75215 CA
Self-reported in NPPES; status is on the state search
Practice location
415 Georgia St, Vallejo, CA 94590
Phone
(707) 556-8100
Enumerated
Oct 18, 2006
Record last updated
Mar 8, 2023
Fax
(707) 556-8107
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 415 Georgia St

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

  1. Melissa Belec, DO, MPHDiabetology (Family Medicine) Physician1205326436
  2. Zoe Cappe, M.DFamily Medicine Physician1326421108
  3. Katrina CoPhysician Assistant1942049614
  4. Gerald DowningGeneral Practice Dentistry1386500098
  5. Charito Feddersen, APRNFamily Nurse Practitioner1992468409
  6. Andres Gonzalez, DDSGeneral Practice Dentistry1437871985

Verify Daniel James Thwaites in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G75215
    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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97% fewer Medicare Part D claims than the average family medicine physician in 2024

105 Medicare Part D claims for 42 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Daniel Thwaites105
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium24 claims
  2. Metformin Hcl15 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): 85.7 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 score82.7
  2. Costout of 100 · 30%70.6
  3. Promoting interoperabilityout of 100 · 25%99.0
  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).

Industry payments in 2024: $24.09

1 payment: food and beverage; the largest payer was Hologic Sales and Service, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Daniel Thwaites$24.09
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Daniel James Thwaites among 17,133 family medicine physician records in California

Daniel James Thwaites, MD 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2023 · 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).

66 family medicine physician records list a practice address in Vallejo

They are 66 of the 2,836 NPPES records with a practice address in Vallejo, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Zoe Cappe, M.DVallejo, CA 945901326421108
  2. Matthew Fagan, D.O.Vallejo, CA 945901740488543
  3. Wasfa Jahangiri, MDVallejo, CA 945901215021175
  4. Francis Ko, M.D.Vallejo, CA 945901912102179
  5. James Lessenger, MDVallejo, CA 945901427206796
  6. Steve Lim, MDVallejo, CA 945901174548481
  7. Moneesha Mukherjee, MDVallejo, CA 945901386374700
  8. Kyra Ray, MDVallejo, CA 945901154948925

Common questions

What is Daniel James Thwaites, MD's NPI number?

Daniel James Thwaites, MD's National Provider Identifier (NPI) is 1598846362, issued on Oct 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Daniel James Thwaites, MD located?

The NPPES record lists a practice address at 415 Georgia St, Vallejo, CA, 94590. Phone: (707) 556-8100. Providers update this record themselves, so call before visiting.

How can I verify Daniel James Thwaites, MD's license?

NPPES lists California license number G75215, 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 Daniel James Thwaites, MD prescribe under Medicare Part D?

In 2024, Daniel James Thwaites, MD had 105 Medicare Part D claims for 42 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Daniel James Thwaites, MD's MIPS final score?

The 2023 MIPS final score is 85.7 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.