NPPES file of Aug 9, 2026

Karl N. Zeff, M.D.

Child & Adolescent Psychiatry Physician · Sacramento, CA

Karl N. Zeff, M.D. is a child & adolescent psychiatry physician with a practice address in Sacramento, California, and NPI 1861584377, issued on Sep 29, 2006. Check the license (California G56995, 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
1861584377
Name
Karl N. Zeff
Credential
M.D.
Primary taxonomy
Child & Adolescent Psychiatry Physician 2084P0804X
License number
G56995 CA
Self-reported in NPPES; status is on the state search
Practice location
1792 Tribute RD, Sacramento, CA 95815
Phone
(916) 924-6400
Enumerated
Sep 29, 2006
Record last updated
Feb 17, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicaid ID
00G569950 CA
Medicare enrollment
Enrolled (PECOS I20050511000334); accepts Medicare assignment
Medical or professional school
Uniformed Services Uhs Fe Hebert School Of Med, 1984
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.
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Also registered at 1792 Tribute RD

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

  1. Esmeralda Bako, PAPhysician Assistant1770372039
  2. Kimberly Bell, P.T.Licensed Psychiatric Technician1013931906
  3. Teresa Brown, R.D., C.D.E.Registered Dietitian1962836254
  4. Sufen Chiu, M.D.Child & Adolescent Psychiatry Physician1336124486
  5. Elvira Drljevic, MDChild & Adolescent Psychiatry Physician1295799815
  6. Hanns Haesslein, M.D.Maternal & Fetal Medicine Physician1790720175

Verify Karl N. Zeff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G56995
    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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11.3 times the Medicare Part D claims of the average child & adolescent psychiatry physician in 2024

5,670 Medicare Part D claims for 302 beneficiaries, against an average of 504 among the 3,545 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.

  1. Karl Zeff5,670
  2. Specialty average504

Most prescribed

  1. Quetiapine Fumarate474 claims
  2. Bupropion Xl401 claims
  3. Trazodone Hcl329 claims
  4. Aripiprazole267 claims
  5. Lamotrigine256 claims
  6. Escitalopram Oxalate230 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).

Bills Medicare through one group practice

  1. Dignity Health Medical FoundationSacramento, CA

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

Karl N. Zeff among 1,009 child & adolescent psychiatry physician records in California

Karl N. Zeff, M.D. is one of 1,009 child & adolescent psychiatry physician records with a practice address in California. 55% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 65% newer
  • In a Medicare fileYes · 55% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Graduated1984 · median 2005 among the 215 with a school on file
  • Record last updated2012 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Child & Adolescent Psychiatry Physician providers in California

There are 1,009 child & adolescent psychiatry physician records in California.

The 8 child & adolescent psychiatry physician records with the nearest ZIP codes

  1. Sufen Chiu, M.D.Sacramento, CA 958151336124486
  2. Elvira Drljevic, MDSacramento, CA 958151295799815
  3. Theodore Hoffman, M.D.Sacramento, CA 958151982762787
  4. Penelope Knapp, MDSacramento, CA 958141962530394
  5. Thomas Anders, M.D.Sacramento, CA 958171851310973
  6. Regina Graham, M.D.Sacramento, CA 958171306974126
  7. Tammi James, M.D.Sacramento, CA 958171942274261
  8. Kristiana Lehn, MDSacramento, CA 958171447796701

Common questions

What is Karl N. Zeff, M.D.'s NPI number?

Karl N. Zeff, M.D.'s National Provider Identifier (NPI) is 1861584377, issued on Sep 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Karl N. Zeff, M.D. located?

The NPPES record lists a practice address at 1792 Tribute RD, Sacramento, CA, 95815. Phone: (916) 924-6400. Providers update this record themselves, so call before visiting.

How can I verify Karl N. Zeff, M.D.'s license?

NPPES lists California license number G56995, 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 Karl N. Zeff, M.D. prescribe under Medicare Part D?

In 2024, Karl N. Zeff, M.D. had 5,670 Medicare Part D claims for 302 beneficiaries; the average among child & adolescent psychiatry physician prescribers was 504. Part D covers Medicare prescriptions only.

What is Karl N. Zeff, M.D.'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.