NPPES file of Aug 9, 2026

Heather Marie Siefkes, MD

Pediatric Critical Care Medicine Physician · Sacramento, CA

Heather Marie Siefkes, MD is a pediatric critical care medicine physician with a practice address in Sacramento, California, and NPI 1396060786, issued on Mar 29, 2010. Check the license (California A142130, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1396060786
Name
Heather Marie Siefkes
Credential
MD
Primary taxonomy
Pediatric Critical Care Medicine Physician 2080P0203X
License number
A142130 CA
Self-reported in NPPES; status is on the state search
Practice location
2516 Stockton Blvd, Sacramento, CA 95817
Phone
(916) 734-7840
Enumerated
Mar 29, 2010
Record last updated
Sep 20, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(916) 456-2235
Medicare enrollment
Enrolled (PECOS I20160602002672); accepts Medicare assignment
Medical or professional school
Oregon Health Sciences University School Of Medicine, 2010
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 2516 Stockton Blvd

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

  1. Ajjya Acharya, MDPediatrics Physician1760970354
  2. Jessica Ahn, MDStudent in an Organized Health Care Education/Training Program1124722111
  3. Abdullah Ahram, MDPediatrics Physician1336297795
  4. Roger Akins, D.O.Developmental - Behavioral Pediatrics Physician1881666055
  5. Natalie AlvaradoStudent in an Organized Health Care Education/Training Program1851230247
  6. Brighton AlveyStudent in an Organized Health Care Education/Training Program1316643083

Verify Heather Marie Siefkes in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A142130
    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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Bills Medicare through one group practice

  1. Regents OF The Univ OF CASacramento, CA

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

Heather Marie Siefkes among 337 pediatric critical care medicine physician records in California

Heather Marie Siefkes, MD is one of 337 pediatric critical care medicine physician records with a practice address in California. 39% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 56% of them.

  • NPI issued2010 · 56% of these records are older, 38% newer
  • In a Medicare fileYes · 39% of these records are
  • In the CMS Doctors and Clinicians fileYes · 28% of these records are
  • Graduated2010 · median 2008 among the 95 with a school on file
  • Record last updated2016 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0203X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Critical Care Medicine Physician providers in California

There are 337 pediatric critical care medicine physician records in California.

The 8 pediatric critical care medicine physician records with the nearest ZIP codes

  1. Blair Colwell, MDSacramento, CA 958171982925368
  2. Brian Goudy, M.D.Sacramento, CA 958171215270871
  3. Moonjoo Han, MDSacramento, CA 958171043503675
  4. Kevin Haug, M.D.Sacramento, CA 958171134261134
  5. John Holcroft, MDSacramento, CA 958171598817876
  6. Michelle LimSacramento, CA 958171316238561
  7. Stephanie Mateev, M.D.Sacramento, CA 958171144273467
  8. Theresa Murdock-Vlautin, M.D.Sacramento, CA 958171215961511

Common questions

What is Heather Marie Siefkes, MD's NPI number?

Heather Marie Siefkes, MD's National Provider Identifier (NPI) is 1396060786, issued on Mar 29, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Heather Marie Siefkes, MD located?

The NPPES record lists a practice address at 2516 Stockton Blvd, Sacramento, CA, 95817. Phone: (916) 734-7840. Providers update this record themselves, so call before visiting.

How can I verify Heather Marie Siefkes, MD's license?

NPPES lists California license number A142130, 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.

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.