NPPES file of Aug 9, 2026

Penny Lee Larson, M.D.

Obstetrics & Gynecology Physician · Rancho Cordova, CA

Penny Lee Larson, M.D. is an obstetrics & gynecology physician with a practice address in Rancho Cordova, California, and NPI 1528057213, issued on Oct 17, 2005. Check the license (California A93985, 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
1528057213
Name
Penny Lee Larson
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
A93985 CA
55075 GA
01051820A IN
Self-reported in NPPES; status is on the state search
Practice location
12646 Thornberg Way, Rancho Cordova, CA 95742
Phone
(916) 238-6070
Enumerated
Oct 17, 2005
Record last updated
Jun 15, 2023
Fax
(916) 238-6070
Medicare enrollment
Enrolled (PECOS I20060821000430); accepts Medicare assignment
Medical or professional school
Loyola University Of Chicago, Stritch School Of Medicine, 1998
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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Verify Penny Lee Larson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A93985
    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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63% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

61 Medicare Part D claims for 27 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Penny Larson61
  2. Specialty average165

Most prescribed

  1. Yuvafem17 claims
  2. Estradiol15 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.

Industry payments in 2024: $102.64

5 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Penny Larson$102.64
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Capital Ob/gyn, Inc.Sacramento, CA

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

Penny Lee Larson among 5,088 obstetrics & gynecology physician records in California

Penny Lee Larson, 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 95% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1998 · median 2004 among the 2,700 with a school on file
  • Record last updated2023 · 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).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

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

  1. Martha Garcia, M.D.Granite Bay, CA 957461932167582
  2. Denise Sweeney, MEDICAL DOCTORGranite Bay, CA 957461841267960
  3. Irwin HermanRoseville, CA 957471649537846
  4. Jenifer Burkhalter, MDElk Grove, CA 957581073588026
  5. Rachel Dong, MDElk Grove, CA 957581467530105
  6. Gregory Douglas, MDElk Grove, CA 957581194799650
  7. Elizabeth Gonzalez, M.D.Elk Grove, CA 957581396767786
  8. Stacy Hull, MDElk Grove, CA 957581639257355

Common questions

What is Penny Lee Larson, M.D.'s NPI number?

Penny Lee Larson, M.D.'s National Provider Identifier (NPI) is 1528057213, issued on Oct 17, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Penny Lee Larson, M.D. located?

The NPPES record lists a practice address at 12646 Thornberg Way, Rancho Cordova, CA, 95742. Phone: (916) 238-6070. Providers update this record themselves, so call before visiting.

How can I verify Penny Lee Larson, M.D.'s license?

NPPES lists California license number A93985, 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 Penny Lee Larson, M.D. prescribe under Medicare Part D?

In 2024, Penny Lee Larson, M.D. had 61 Medicare Part D claims for 27 beneficiaries; 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.