NPPES file of Aug 9, 2026

John L. Kaufmann, MD

Infectious Disease Physician · Santa Cruz, CA

John L. Kaufmann, MD is an infectious disease physician with a practice address in Santa Cruz, California, and NPI 1265481949, issued on May 9, 2006. Check the license (California A66401, 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
1265481949
Name
John L. Kaufmann
Credential
MD
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
A66401 CA
Self-reported in NPPES; status is on the state search
Practice location
1595 Soquel Dr Ste 411, Santa Cruz, CA 95065
Phone
(831) 475-8834
Enumerated
May 9, 2006
Record last updated
Aug 20, 2023
Fax
(831) 462-2058
Medicare enrollment
Enrolled (PECOS I20080201000446); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 1997
Telehealth
Offers telehealth (CMS)
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.
Download card Updates feed

Also registered at 1595 Soquel Dr Ste 411

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

  1. Pritisheel Banga, DOEndocrinology, Diabetes & Metabolism Physician1043571151
  2. Michelle Di Fiore, M.D.Rheumatology Physician1790171072
  3. Aaron Pardini, M.D.Endocrinology, Diabetes & Metabolism Physician1235147562
  4. Charulata Ramaprasad, M.D.Infectious Disease Physician1528269925
  5. Sunita Singh, MDInfectious Disease Physician1649508581

Verify John L. Kaufmann in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A66401
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

2.8 times the Medicare Part D claims of the average infectious disease physician in 2024

1,927 Medicare Part D claims for 162 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. 63 claims were for opioids.

  1. John Kaufmann1,927
  2. Specialty average689

Most prescribed

  1. Atorvastatin Calcium132 claims
  2. Gabapentin81 claims
  3. Dovato66 claims
  4. Tivicay66 claims
  5. Hydrocodone-Acetaminophen63 claims
  6. Biktarvy56 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): 96.5 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 score80.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Industry payments in 2024: $41.87

3 payments; by number, the most common kind was food and beverage; the largest payer was ViiV Healthcare Company. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Kaufmann$41.87
  2. Specialty average$4,362.19

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

Bills Medicare through one group practice

  1. Dignity Health Medical FoundationSanta Cruz, CA

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

Infectious Disease Physician providers in California

There are 1,119 infectious disease physician records in California.

Other infectious disease physician records in California

  1. Sanaz Abderrahmane, M.D.Sacramento, CA1902039902
  2. Shira Abeles, M.D.San Diego, CA1720240625
  3. Igor Abolnik, MDRureka, CA1194783829
  4. Firas Abubaker, MDCorona, CA1346255254
  5. Nehkonti Adams, M.D.San Diego, CA1194985705
  6. Paul Adamson, MD, MPHLos Angeles, CA1639558455
  7. Alina Adeel, M.DLa Jolla, CA1831453596
  8. Oladunni Adeyiga, MDLos Angeles, CA1801809751
  9. Jacqueline Adler, M.D.West Hills, CA1326094582
  10. Dipti Agrawal, MDPalo Alto, CA1437137189

Common questions

What is John L. Kaufmann, MD's NPI number?

John L. Kaufmann, MD's National Provider Identifier (NPI) is 1265481949, issued on May 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John L. Kaufmann, MD located?

The NPPES record lists a practice address at 1595 Soquel Dr Ste 411, Santa Cruz, CA, 95065. Phone: (831) 475-8834. Providers update this record themselves, so call before visiting.

How can I verify John L. Kaufmann, MD's license?

NPPES lists California license number A66401, 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 John L. Kaufmann, MD prescribe under Medicare Part D?

In 2024, John L. Kaufmann, MD had 1,927 Medicare Part D claims for 162 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.

What is John L. Kaufmann, MD's MIPS final score?

The 2023 MIPS final score is 96.5 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.