NPPES file of Aug 9, 2026

Danielle C.a. Sawyer-Macknet, M.D.

Obstetrics & Gynecology Physician · Loma Linda, CA

Danielle C.a. Sawyer-Macknet, M.D. is an obstetrics & gynecology physician with a practice address in Loma Linda, California, and NPI 1073704250, issued on Aug 5, 2007. Check the license (California A91409, 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
1073704250
Name
Danielle C.a. Sawyer-Macknet
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A91409 CA
Self-reported in NPPES; status is on the state search
Practice location
25805 Barton RD, Loma Linda, CA 92354
Phone
(909) 478-7700
Enumerated
Aug 5, 2007
Record last updated
Feb 22, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(909) 478-7705
Medicaid ID
00A914090 CA
Medicare enrollment
Enrolled (PECOS I20071011000302); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 2003
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 25805 Barton RD

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

  1. Kimberly Paulien, MD, RDRegistered Dietitian1699192195
  2. Shawn Uraine, MDInterventional Pain Medicine Physician1588836274

Verify Danielle C.a. Sawyer-Macknet in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A91409
    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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90% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

16 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Danielle Sawyer-Macknet16
  2. Specialty average165

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 one group practice

  1. Obhg California PCRedlands, CA

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

Danielle C.a. Sawyer-Macknet among 5,088 obstetrics & gynecology physician records in California

Danielle C.a. Sawyer-Macknet, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 48% of them.

  • NPI issued2007 · 48% of these records are older, 38% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2003 · median 2004 among the 2,700 with a school on file
  • Record last updated2013 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

59 obstetrics & gynecology physician records list a practice address in Loma Linda

They are 59 of the 4,863 NPPES records with a practice address in Loma Linda, and 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Kevin Balli, M.D.Loma Linda, CA 923541083636260
  2. Barry Block, M.D.Loma Linda, CA 923541134141328
  3. Karen Gaio Hansberger, MDLoma Linda, CA 923541710083159
  4. Yvonne Gollin, M.D.Loma Linda, CA 923541790899300
  5. Jeffrey Hardesty, M.D.Loma Linda, CA 923541447364062
  6. Elaine Hart, M.D.Loma Linda, CA 923541396767588
  7. John Jacobson, M.D.Loma Linda, CA 923541467474650
  8. Kathleen Lau, M.D.Loma Linda, CA 923541164536702

Common questions

What is Danielle C.a. Sawyer-Macknet, M.D.'s NPI number?

Danielle C.a. Sawyer-Macknet, M.D.'s National Provider Identifier (NPI) is 1073704250, issued on Aug 5, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Danielle C.a. Sawyer-Macknet, M.D. located?

The NPPES record lists a practice address at 25805 Barton RD, Loma Linda, CA, 92354. Phone: (909) 478-7700. Providers update this record themselves, so call before visiting.

How can I verify Danielle C.a. Sawyer-Macknet, M.D.'s license?

NPPES lists California license number A91409, 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 Danielle C.a. Sawyer-Macknet, M.D. prescribe under Medicare Part D?

In 2024, Danielle C.a. Sawyer-Macknet, M.D. had 16 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. 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.