Dr. Gary S. Leiserowitz, MD

  • Sacramento, CA
  • Gynecologic oncologist
NPI1871575142PAC ID6204997117
Medicare services, 2024
141
Medicare patients, 2024
111
Part D claims, 2024
43
Publications
43
Clinical trials
3
Practice address
2315 Stockton Boulevard, Sacramento, CA 95817
Practice phone
Call (916) 734-2011
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UC Davis Medical Center

Hospital · Sacramento, California

See all 4 affiliations

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Dr. Gary S. Leiserowitz is a gynecologic oncologist in Sacramento, California

Dr. Leiserowitz practices at UC Davis Medical Center in Sacramento, California, part of University of California Health.

Dr. Leiserowitz's NPI, 1871575142, was assigned on November 14, 2005. Dr. Leiserowitz graduated from Carver College of Medicine in 1981. Dr. Leiserowitz holds California license C407800.

NPI and contact details
Medicare PAC ID
6204997117
NPI enumeration date
November 14, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(916) 734-2011
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
71
Medical school graduation
1981

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Gary S. Leiserowitz practices at UC Davis Medical Center in Sacramento, California

Dr. Leiserowitz's primary practice is UC Davis Medical Center, at 2315 Stockton Boulevard, Sacramento, CA 95817 in Sacramento County. The practice phone is (916) 734-2011.

Source: Dmand AI Affiliation Data

Dr. Gary S. Leiserowitz is affiliated with 3 sites of care and 1 medical group

Dr. Leiserowitz's primary practice is UC Davis Medical Center in Sacramento, California, part of University of California Health. Dr. Leiserowitz is also affiliated with Marshall Medical. The medical group on file is UC Davis Medical Group. Dmand AI also links Dr. Leiserowitz to 1 more group practice or clinic, named with a free account.

See all 4 affiliations for Dr. Leiserowitz

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Gary S. Leiserowitz's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leiserowitz practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UC Davis Medical CenterAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Gary S. Leiserowitz is one of 178 gynecologic oncologists in California

Gynecologic oncology is Dr. Leiserowitz's primary specialty in the NPI Registry, under taxonomy code 207VX0201X. Dr. Leiserowitz is board certified in gynecologic oncology by the American Board of Obstetrics and Gynecology. Dmand AI has Dr. Leiserowitz's licenses on file in 3 states: California, Minnesota and Iowa.

Specialties and state licenses

  • Gynecologic oncology, CaliforniaPrimaryLicense C407800 · 1982 to 2026 · taxonomy 207VX0201X
  • Minnesota license1990 to 1994
  • Iowa license1982

Clinical focus

Dmand AI lists hysterectomy and ovarian cyst among the conditions Dr. Leiserowitz treats.

Gynecologic oncologists near Dr. Leiserowitz

Counts of gynecologic oncologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Gary S. Leiserowitz billed Medicare for 141 services in 2024

CMS data shows 141 Medicare services from Dr. Leiserowitz across 5 procedure codes in 2024, for 111 Medicare patients. Medicare paid $17,171 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024141
Medicare patients111
Paid by Medicare$17,171
Procedure codes5

Dr. Leiserowitz's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1862024: 13030%
Surgery
2023: 02024: 11

Dr. Leiserowitz compared with the California median for gynecologic oncologists, 2024

  • Dr. Leiserowitz
  • California median
Medicare services
141vs 28050% below
Medicare patients
111vs 1229% below
Part D claims
12vs 3868% below

Medians across 165 gynecologic oncologists in California with Dmand AI profiles that report each measure.

Dr. Leiserowitz's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Leiserowitz

Need commercial claims for Dr. Leiserowitz?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Leiserowitz and other gynecologic oncologists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Gary S. Leiserowitz treated 111 Medicare patients in 2024, average age 72

CMS counts 111 Medicare patients who saw Dr. Leiserowitz in 2024. The largest group is 65 to 74, with 55 patients. 74% of them have high blood pressure, and 70% have high cholesterol. 23% are also on Medicaid. Their average risk score is 1.63, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Leiserowitz's median patient age at 61, with 100% women.

Medicare patients, 2024111
Average age72
Average risk score1.63
Also on Medicaid23%

Dr. Leiserowitz's Medicare patients by age, 2024

Chronic conditions among Dr. Leiserowitz's Medicare patients, 2024

  1. High blood pressure74%
  2. High cholesterol70%
  3. Cancer54%
  4. Arthritis40%
  5. Chronic kidney disease29%
  6. Anxiety27%
  7. Diabetes27%
  8. Mood disorders25%

Share of Medicare patients with each condition. A patient can have several.

Dr. Leiserowitz's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 61

Patient panel by sex, all payers

  • Women100%
  • Men0%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Gary S. Leiserowitz wrote 43 Medicare Part D claims in 2024

In 2024, Dr. Leiserowitz wrote 43 Medicare Part D claims for 14 patients. 100% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $81 in total drug cost. In 2023, CMS named 11 claims across 1 drug.

Part D claims, 202443
Drugs named by CMS1
Total drug cost$81
Part D patients14

Dr. Leiserowitz's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 112024: 129%

Drugs named by CMS: 1 in 2024, 1 in 2023.

See all prescribing by Dr. Leiserowitz

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Gary S. Leiserowitz scored 83 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Leiserowitz for performance year 2024, reported as part of a group. Dr. Leiserowitz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Leiserowitz as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Leiserowitz's MIPS scores, performance year 2024

  • 83of 100Final score
  • 64.8of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 69of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Removal of the uterus: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Gary S. Leiserowitz has 43 publications on record

Dmand AI links 43 papers to Dr. Leiserowitz, published from 2005 to 2023. 2016 was the busiest year, with 3. The most frequent topics are Ovarian Neoplasms, Carcinoma, Ovarian Epithelial and Polysaccharides. Dr. Leiserowitz has published most often in Gynecol Oncol. Dr. Leiserowitz's most frequent co-authors are Rebecca Ann Brooks, MD, William A. Cliby, MD and Jyoti S. Mayadev, MD.

Papers43
Years published2005 to 2023

Dr. Leiserowitz's papers by year, 2011 to 2023

Topics Dr. Leiserowitz writes about most

  • Ovarian Neoplasms
  • Carcinoma, Ovarian Epithelial
  • Polysaccharides
  • California
  • Glycomics
  • Mass Spectrometry
  • Biomarkers, Tumor
  • Practice Patterns, Physicians'

Dr. Leiserowitz's most frequent co-authors

Recent publications by Dr. Leiserowitz

See all 43 publications and co-authors

See who Dr. Leiserowitz researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Leiserowitz works with, so you can find a warm path to the right gynecologic oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Gary S. Leiserowitz has worked on 3 clinical trials

Dmand AI links Dr. Leiserowitz to 3 clinical trials, 2 of them phase 3 studies. Conditions studied include Brenner Tumor, Carcinoma, Ovarian Epithelial and Uterine Cervical Neoplasms.

Conditions in Dr. Leiserowitz's trials

  • Brenner Tumor
  • Carcinoma, Ovarian Epithelial
  • Uterine Cervical Neoplasms
  • Neoplasms, Fibroepithelial
  • Ovarian Neoplasms

Investigators on the most trials with Dr. Leiserowitz

Recent clinical trials with Dr. Leiserowitz

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Gary S. Leiserowitz received $604 in industry payments from 2017 to 2024

CMS Open Payments shows 7 general payments to Dr. Leiserowitz from 5 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $245.

General payments to Dr. Leiserowitz by program year, 2017 to 2024

Companies that paid Dr. Leiserowitz the most, 2017 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Leiserowitz

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Gary S. Leiserowitz has 5 awards and honors on record

Dmand AI lists 5 awards for Dr. Leiserowitz, most recently Top Docs in 2022.

Awards and honors for Dr. Leiserowitz

  1. 2022
    • Top Docs
  2. 2012
    • CMS Stage 1 EHR
  3. Undated
    • ACOG Fellow
    • Best Doctors in America
    • Super Doc

Source: Dmand AI Professional Profile Data

Dr. Gary S. Leiserowitz graduated from Carver College of Medicine

Dr. Leiserowitz graduated from Carver College of Medicine in 1981. Dr. Leiserowitz is a member of American College of Obstetricians and Gynecologists, Society of Gynecologic Oncology and Western Association of Gynecologic Oncology.

  1. Medical schoolCarver College of Medicine
  2. Board certified in gynecologic oncologyAmerican Board of Obstetrics and Gynecology
  3. Board certified in obstetrics & gynecologyAmerican Board of Obstetrics and Gynecology

Source: Dmand AI Professional Profile Data

Dr. Gary S. Leiserowitz accepts plans from 9 insurance carriers

Dr. Leiserowitz is in network with 9 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare
  • NV State Medicaid
  • +1 more carriersWith a free account

Plan types Dr. Leiserowitz accepts, by number of carriers

  1. Medicare8
  2. PPO6
  3. HMO3
  4. POS3
  5. EPO2
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Gary S. Leiserowitz's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Gary S. Leiserowitz

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Gary S. Leiserowitz's NPI number?

Dr. Gary S. Leiserowitz's NPI number is 1871575142. It was assigned on November 14, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Gary S. Leiserowitz?

Dr. Gary S. Leiserowitz is a gynecologic oncologist in Sacramento, California. The primary specialty in the NPI Registry is Gynecologic Oncology Physician (taxonomy code 207VX0201X).

Where does Dr. Gary S. Leiserowitz practice?

Dr. Leiserowitz practices at 2315 Stockton Boulevard, Sacramento, CA 95817. Dr. Leiserowitz's primary practice is UC Davis Medical Center in Sacramento, California, part of University of California Health. Dmand AI also links Dr. Leiserowitz to 1 group practice or clinic.

What is Dr. Gary S. Leiserowitz's office phone number?

The practice phone on file for Dr. Leiserowitz is (916) 734-2011.

What is Dr. Gary S. Leiserowitz's medical license number?

Dr. Leiserowitz holds California license C407800, one of the licenses on file in 3 states.

Which states has Dr. Gary S. Leiserowitz been licensed in?

Dmand AI has state licenses on file for Dr. Leiserowitz in California (1982 to 2026), Minnesota (1990 to 1994) and Iowa (1982).

Which hospitals is Dr. Gary S. Leiserowitz affiliated with?

Dr. Leiserowitz practices at UC Davis Medical Center in Sacramento, California. Dr. Leiserowitz is also affiliated with Marshall Medical.

What medical group is Dr. Gary S. Leiserowitz part of?

Dr. Leiserowitz is linked to UC Davis Medical Group.

Does Dr. Gary S. Leiserowitz accept Medicare?

Yes. CMS data shows Dr. Leiserowitz billed Medicare for 141 services in 2024, and Dr. Leiserowitz accepts Medicare assignment.

Does Dr. Gary S. Leiserowitz offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Leiserowitz as offering telehealth services.

Show 11 more questionsShow fewer questions

What is Dr. Gary S. Leiserowitz's MIPS score?

Dr. Leiserowitz's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.

How many Medicare patients does Dr. Gary S. Leiserowitz see?

CMS counts 111 Medicare patients who saw Dr. Leiserowitz in 2024, with an average age of 72.

Is Dr. Gary S. Leiserowitz board certified?

Yes. Dr. Leiserowitz is board certified in gynecologic oncology by the American Board of Obstetrics and Gynecology.

What services does Dr. Gary S. Leiserowitz bill to Medicare?

In 2024, Dr. Leiserowitz's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and office visit, new patient (99204).

Where did Dr. Gary S. Leiserowitz go to medical school?

Dr. Leiserowitz graduated from Carver College of Medicine in 1981.

What drugs does Dr. Gary S. Leiserowitz prescribe most?

In 2024 Medicare Part D data, Dr. Leiserowitz's most prescribed drugs by claims were Anastrozole.

Has Dr. Gary S. Leiserowitz received payments from drug or device companies?

CMS Open Payments shows $604 in general payments to Dr. Leiserowitz from 5 companies from 2017 to 2024. The largest total came from AstraZeneca Pharmaceuticals LP.

How long has Dr. Gary S. Leiserowitz been practicing?

Dr. Leiserowitz graduated from medical school in 1981, 45 years ago.

Does Dr. Gary S. Leiserowitz do research?

Dmand AI links 43 publications to Dr. Leiserowitz, published from 2005 to 2023. Dr. Leiserowitz has worked on 3 clinical trials.

Who does Dr. Gary S. Leiserowitz publish with?

Dr. Leiserowitz's most frequent co-authors are Rebecca Ann Brooks, MD (3 shared papers), William A. Cliby, MD (3 shared papers) and Jyoti S. Mayadev, MD (3 shared papers).

What insurance does Dr. Gary S. Leiserowitz accept?

Dr. Leiserowitz is in network with 9 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

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