NPPES file of Aug 9, 2026

Melinda Jean Lorenson, M.D.

Obstetrics Physician · Santa Clara, CA

Melinda Jean Lorenson, M.D. is an obstetrics physician with a practice address in Santa Clara, California, and NPI 1861717811, issued on Apr 1, 2010. Check the license (California A121337, 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
1861717811
Name
Melinda Jean Lorenson
Credential
M.D.
Primary taxonomy
Obstetrics Physician 207VX0000X
License number
A121337 CA
Self-reported in NPPES; status is on the state search
Practice location
700 Lawrence Expy Dept 300, Santa Clara, CA 95051
Phone
(408) 851-3148
Enumerated
Apr 1, 2010
Record last updated
Mar 22, 2026
Fax
(408) 851-1000
Medicare enrollment
Enrolled (PECOS I20141217000885); accepts Medicare assignment
Medical or professional school
University Of California, San Francisco School Of Medicine, 2009
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 700 Lawrence Expy Dept 300

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

  1. Lisa VincentiAdvanced Practice Midwife1669966164

Verify Melinda Jean Lorenson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A121337
    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

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Bills Medicare through one group practice

  1. Permanente Medical Group IncSanta Clara, CA

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

Melinda Jean Lorenson among 174 obstetrics physician records in California

Melinda Jean Lorenson, M.D. is one of 174 obstetrics physician records with a practice address in California. 67% 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 70% of them.

  • NPI issued2010 · 70% of these records are older, 28% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2009 · median 2002 among the 91 with a school on file
  • Record last updated2026 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics Physician providers in California

There are 174 obstetrics physician records in California.

The 8 obstetrics physician records with the nearest ZIP codes

  1. Margaret Moore, MDSanta Cruz, CA 950651699827790
  2. Andrea Bowen, MDMilpitas, CA 950351477871945
  3. Sharon Buzi, M.D.Los Gatos, CA 950321730478041
  4. Francis Sacco, M.D.Gilroy, CA 950201922188952
  5. Neil Granader, M.D.San Jose, CA 951161730274309
  6. Stephen Belton, M.D.San Jose, CA 951241992764773
  7. Miel Vallejo-Brooks, MDSan Jose, CA 951281215952056
  8. John Yu, M.D.San Jose, CA 951281497803167

Common questions

What is Melinda Jean Lorenson, M.D.'s NPI number?

Melinda Jean Lorenson, M.D.'s National Provider Identifier (NPI) is 1861717811, issued on Apr 1, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Melinda Jean Lorenson, M.D. located?

The NPPES record lists a practice address at 700 Lawrence Expy Dept 300, Santa Clara, CA, 95051. Phone: (408) 851-3148. Providers update this record themselves, so call before visiting.

How can I verify Melinda Jean Lorenson, M.D.'s license?

NPPES lists California license number A121337, 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.