NPPES file of Aug 9, 2026

Daniel Kingsby Colby, M.D.

Emergency Medicine Physician · Sacramento, CA

Daniel Kingsby Colby, M.D. is an emergency medicine physician with a practice address in Sacramento, California, and NPI 1467740548, issued on Jul 11, 2011. Check the license (California A123451, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1467740548
Name
Daniel Kingsby Colby
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A123451 CA
Self-reported in NPPES; status is on the state search
Practice location
2315 Stockton Blvd., Pssb 2100, Sacramento, CA 95817
Phone
(916) 734-8571
Enumerated
Jul 11, 2011
Record last updated
Mar 11, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(916) 734-7950
Medicare enrollment
Enrolled (PECOS I20140815001524); accepts Medicare assignment
Medical or professional school
University Of California, Irvine, California College Of Medicine, 2011
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 2315 Stockton Blvd., Pssb 2100

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

  1. Jordan Larson, M.D.Emergency Medicine Physician1316200496
  2. Bailey Roche, M.D.Emergency Medicine Physician1649533712

Verify Daniel Kingsby Colby in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A123451
    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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53% fewer Medicare Part D claims than the average emergency medicine physician in 2024

106 Medicare Part D claims for 65 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Daniel Colby106
  2. Specialty average226

Most prescribed

  1. Amlodipine Besylate11 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.

Bills Medicare through 2 group practices

  1. Regents OF The Univ OF CASacramento, CA
  2. Regents OF The University OF CaliforniaSacramento, CA

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

Daniel Kingsby Colby among 7,751 emergency medicine physician records in California

Daniel Kingsby Colby, M.D. is one of 7,751 emergency 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 2011, is newer than 60% of them.

  • NPI issued2011 · 60% of these records are older, 37% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2011 · median 2011 among the 4,560 with a school on file
  • Record last updated2015 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

369 emergency medicine physician records list a practice address in Sacramento

They are 369 of the 33,083 NPPES records with a practice address in Sacramento, and 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Jodie Craig, M.D.Sacramento, CA 958171659354124
  2. Greg Hachigian, M.D.Sacramento, CA 958171558342022
  3. James Holmes, MD, MPHSacramento, CA 958171427033091
  4. James Kirk, MDSacramento, CA 958171598749848
  5. Nathan Kuppermann, M.D., M.P.H.Sacramento, CA 958171356322150
  6. James Lee, M.D.Sacramento, CA 958171730163510
  7. Kerry McMahon, MDSacramento, CA 958171235113549
  8. Robert Narverud, M.D.Sacramento, CA 958171457335754

Common questions

What is Daniel Kingsby Colby, M.D.'s NPI number?

Daniel Kingsby Colby, M.D.'s National Provider Identifier (NPI) is 1467740548, issued on Jul 11, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Daniel Kingsby Colby, M.D. located?

The NPPES record lists a practice address at 2315 Stockton Blvd., Pssb 2100, Sacramento, CA, 95817. Phone: (916) 734-8571. Providers update this record themselves, so call before visiting.

How can I verify Daniel Kingsby Colby, M.D.'s license?

NPPES lists California license number A123451, 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 Kingsby Colby, M.D. prescribe under Medicare Part D?

In 2024, Daniel Kingsby Colby, M.D. had 106 Medicare Part D claims for 65 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

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.