2026 NPPES data Obstetrics Physician NPI 1306860861 M.D.
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STEVEN LAZARO, M.D.

Obstetrics Physician in CHICO, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
142
Medicare Part D claims · 39 beneficiaries · Obstetrics Physician avg: 319
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
76.6692/100
▼ 6 pts below national avg 83.1 · [object Object]
What the federal data reveals: STEVEN LAZARO, M.D. is a Obstetrics Physician ([object Object]) practicing in CHICO, California with a Medicare Part D prescribing footprint of 142 claims across 39 beneficiaries — 11% brand-name prescribing . Their CMS MIPS Final Score of 76.6692/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: STEVEN LAZARO, M.D. reported a CMS MIPS final score of 76.6692 out of 100, below the 83.1 national average, and filed 142 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

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

STEVEN LAZARO, M.D. at a glance

Below national average

NPI registry status

Active

Issued 07/27/2006

NPI 1306860861

Primary specialty

Obstetrics Physician

Niche

1,402 US NPIs in this specialty

Medicare Part D claims

142 55% vs specialty avg

2023 prescription claims

Specialty avg: 319

MIPS final score

76.6692/100 6.430799999999991% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in California

How Obstetrics Physician compares to other specialties among California providers

California providers

Obstetrics Physician share within California

1. Obstetrics Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Obstetrics Physician share within California

Medicare quality performance — MIPS

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

Below national average
MIPS Final Score
76.6692/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Obstetrics Physician) — 76.6692/100 vs national avg 83.1

0%100%National avg83%76.7%
MIPS final score (Obstetrics Physician) — 76.6692/100 vs national avg 83.1

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).

STEVEN LAZARO, M.D. is a Obstetrics Physician provider practicing in CHICO, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1306860861. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

STEVEN LAZARO, M.D. appears in the CMS NPPES registry as a Obstetrics Physician provider holding M.D. credentials at 1665 ESPLANADE, CHICO, CA, 95926, with a listed phone of (530) 895-0423. NPI 1306860861 was issued on 07/27/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LAZARO most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 142 prescription claims written by this provider, covering 39 Medicare beneficiaries and totaling roughly $10K in drug spend, split 11% brand-name and 89% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 76.6692/100 for the 2023 performance year (Quality 58.2167, Cost 56.9092), compared with the national average of 83.1.

Obstetrics Physician is a narrow specialty nationwide, with 1,402 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

1665 ESPLANADE
CHICO, CA 95926

Provider Details

NPI 1306860861
Specialty Obstetrics Physician
Credentials M.D.
Gender Male
NPI Issued 07/27/2006

CMS Quality Score (MIPS)

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

76.6692
Final Score
Avg: 83.1
58.2167
Quality
56.9092
Cost
100
Promoting Interoperability

Reporting: Group practice

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 STEVEN LAZARO, M.D.. To verify STEVEN LAZARO, 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 · Typical

STEVEN LAZARO, M.D. — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 142 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.

142
Total Claims
$10K
Total Drug Cost
39
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
284
Total Day Supply
8,418
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$4K
Generic Drug Cost
$6K

Patient Demographics

Average Patient Age
69.2 years
Avg HCC Risk Score
0.80

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Estradiol
45
Raloxifene Hcl
14
Progesterone
"Progesterone
N/A

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

Obstetrics Physician Overview

How STEVEN LAZARO, M.D. fits within the Obstetrics Physician landscape nationally.

1,402
Obstetrics Physician Providers in US
54
States with Obstetrics Physician
319
Avg Claims per Provider

STEVEN LAZARO, M.D.'s 142 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 LAZARO.

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

Frequently Asked Questions

What is STEVEN LAZARO, M.D.'s specialty?
STEVEN LAZARO, M.D. specializes in Obstetrics Physician and practices in CHICO, California. Credentials: M.D..
How much does STEVEN LAZARO, M.D. prescribe under Medicare Part D?
In 2023, STEVEN LAZARO, M.D. wrote 142 Medicare Part D claims totaling $10K in drug costs for 39 beneficiaries.
What is STEVEN LAZARO, M.D.'s Medicare quality score?
STEVEN LAZARO, M.D. has a CMS MIPS Final Score of 76.6692/100 (Quality: 58.2167, Cost: 56.9092). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is STEVEN LAZARO, M.D. located?
STEVEN LAZARO, M.D. is located at 1665 ESPLANADE, CHICO, CA, 95926. Phone: (530) 895-0423.
What is STEVEN LAZARO, M.D.'s NPI number?
STEVEN LAZARO, M.D.'s National Provider Identifier (NPI) is 1306860861, issued on 07/27/2006.
Does STEVEN LAZARO, M.D. prescribe more brand-name or generic drugs?
STEVEN LAZARO, M.D.'s prescribing is 11% brand-name and 89% generic drugs by claim count, with $4K in brand drug costs.
How many Obstetrics Physician providers are there in the US?
There are 1,402 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 STEVEN LAZARO, M.D. prescribe most often?
Based on 2023 Medicare Part D data, STEVEN LAZARO, M.D.'s most frequently prescribed drugs include Estradiol, Raloxifene Hcl, Progesterone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STEVEN LAZARO, M.D. accept Medicare?
STEVEN LAZARO, M.D. appears in CMS Medicare data with 142 Part D claims and 39 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STEVEN LAZARO, M.D.'s credentials?
STEVEN LAZARO, M.D.'s NPI is 1306860861 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

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