2026 NPPES data Obstetrics Physician NPI 1871601591 M.D.
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Leslie Gonzalez, M.D.

Obstetrics Physician in Los Alamitos, California.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,396 in Obstetrics Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
196
Medicare Part D claims · 75 beneficiaries · Obstetrics Physician avg: 319
Generic prescribing
72%
generic claims · 28% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
76.3/100
▼ 7 pts below national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Leslie Gonzalez, M.D. reported a CMS MIPS final score of 76.3/100 - below the 83.1 national average - and filed 196 Medicare Part D claims in 2023.

76.3/100
MIPS score · -7 vs avg
196
Part D claims, 2023
72%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

Leslie Gonzalez, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

76 21st percentile higher than 21% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90+: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Leslie Gonzalez, M.D. sits

This provider among obstetrics physician peers

Across the 243 obstetrics physician providers who report both Medicare Part D prescribing and a MIPS quality score, Leslie Gonzalez, M.D. writes more Part D claims than 70% of them and scores higher on MIPS quality than 10% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.448.873.297.7Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 93Leslie Gonzalez, M.D.-Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 10
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one obstetrics physician peer from a representative sample of 60; the gold marker is Leslie Gonzalez, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Leslie Gonzalez, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Leslie Gonzalez, M.D.?

Below national average

NPI registry status

Active

Issued 08/25/2006

NPI 1871601591

Primary specialty

Obstetrics Physician

Niche

1,396 US NPIs in this specialty

Medicare Part D claims

196 39% vs specialty avg

2023 prescription claims

Specialty avg: 319

MIPS final score

76.3/100 6.8 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in California

How Obstetrics Physician compares to other specialties among California providers

California providers
Behavior Technician - 17.3%Behavior Technician17.3%Marriage & Family Therapist - 5.5%Marriage & Family Therapist5.5%Student in an Organized Health Care Education/Training Program - 5%Student in an Organized Health Care Education/Training Program5%Mental Health Counselor - 3.9%Mental Health Counselor3.9%Pharmacist - 3.5%Pharmacist3.5%Clinical Social Worker - 3.1%Clinical Social Worker3.1%Obstetrics Physician - 0%Obstetrics Physician0%
Largest specialties in California (% of in-state providers)

Medicare quality performance, MIPS

Leslie Gonzalez, M.D.'s 2023 MIPS final score plotted against the Obstetrics Physician national average

Below national average
MIPS Final Score
76.3/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Obstetrics Physician) - 76.3/100 vs national avg 83.1

0%100%National avg83%76.3%
MIPS final score (Obstetrics Physician) - 76.3/100 vs national avg 83.1
How MIPS and board certification work

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Leslie Gonzalez, M.D. appears in the CMS NPPES registry as an Obstetrics Physician provider holding M.D. credentials at 3771 KATELLA, Los Alamitos, CA, 90720, with a listed phone of (562) 296-5232. NPI 1871601591 was issued on 08/25/2006.

Medicare Part D records for calendar year 2023 show 196 prescription claims written by this provider, covering 75 Medicare beneficiaries and totaling roughly $22K in drug spend, split 28% brand-name and 72% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 76.3/100 for the 2023 performance year (Quality 62.7, Cost 59.3), compared with the national average of 83.1.

Obstetrics Physician is a narrow specialty nationwide, with 1,396 enrolled providers across 54 states and an average of 319 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.

Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

3771 KATELLA
Los Alamitos, CA 90720

Provider Details

NPI 1871601591
Specialty Obstetrics Physician
Credentials M.D.
Gender Female
NPI Issued 08/25/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

76.2631
Final Score
Avg: 83.1
62.7438
Quality
59.2967
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where Leslie Gonzalez, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

Pih Health Physicians
Downey, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context - California MBC 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Leslie Gonzalez, M.D.. To verify Leslie Gonzalez, M.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

Leslie Gonzalez, M.D. - brand share 28.0%
Obstetrics Physician average

28% brand-name claims vs 72% generic, on 196 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

196
Total Claims
$22K
Total Drug Cost
75
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
320
Total Day Supply
7,915
Brand vs Generic
28% brand / 72% generic
Brand Drug Cost
$14K
Generic Drug Cost
$8K
Antibiotic Claims
13

Patient Demographics

Average Patient Age
67.5 years
Avg HCC Risk Score
1.13
Gender Split
100% female / 0% male
Age Distribution
<65: 16, 65-74: 43, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Leslie Gonzalez, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Estradiol
33
Medroxyprogesterone Acetate
22
Terconazole
19
Clobetasol Propionate
16
Myrbetriq
Mirabegron
12

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Obstetrics Physician Overview

How Leslie Gonzalez, M.D. fits within the Obstetrics Physician landscape nationally.

1,396
Obstetrics Physician Providers in US
54
States with Obstetrics Physician
319
Avg Claims per Provider

Leslie Gonzalez, M.D.'s 196 claims are below the specialty average of 319.

Nearby Obstetrics Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Gonzalez.

Compare Obstetrics Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the California medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Obstetrics Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Leslie Gonzalez, M.D.'s specialty?
Leslie Gonzalez, M.D. specializes in Obstetrics Physician and practices in Los Alamitos, California. Credentials: M.D..
How much does Leslie Gonzalez, M.D. prescribe under Medicare Part D?
In 2023, Leslie Gonzalez, M.D. wrote 196 Medicare Part D claims totaling $22K in drug costs for 75 beneficiaries.
What is Leslie Gonzalez, M.D.'s Medicare quality score?
Leslie Gonzalez, M.D. has a CMS MIPS Final Score of 76.3/100 (Quality: 62.7, Cost: 59.3). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Leslie Gonzalez, M.D. located?
Leslie Gonzalez, M.D. is located at 3771 KATELLA, Los Alamitos, CA, 90720. Phone: (562) 296-5232.
What is Leslie Gonzalez, M.D.'s NPI number?
Leslie Gonzalez, M.D.'s National Provider Identifier (NPI) is 1871601591, issued on 08/25/2006.
Does Leslie Gonzalez, M.D. prescribe more brand-name or generic drugs?
Leslie Gonzalez, M.D.'s prescribing is 28% brand-name and 72% generic drugs by claim count, with $14K in brand drug costs.
How many Obstetrics Physician providers are there in the US?
There are 1,396 Obstetrics Physician providers across 54 states in the US. The average Obstetrics Physician provider writes 319 Medicare Part D claims per year.
What drugs does Leslie Gonzalez, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Leslie Gonzalez, M.D.'s most frequently prescribed drugs include Estradiol, Medroxyprogesterone Acetate, Terconazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Leslie Gonzalez, M.D. accept Medicare?
Leslie Gonzalez, M.D. appears in CMS Medicare data with 196 Part D claims and 75 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Leslie Gonzalez, M.D.'s credentials?
Leslie Gonzalez, M.D.'s NPI is 1871601591 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

View source datasets and methodology notes
Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the PlainDoctor editorial team.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.