2026 NPPES data Developmental - Behavioral Pediatrics Physician NPI 1255453627 M.D.
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LEONARD BAKER, M.D.

Developmental - Behavioral Pediatrics Physician in LA CANADA, 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
218
Medicare Part D claims · 12 beneficiaries · Developmental - Behavioral Pediatrics Physician avg: 175
Industry payments
$877.61
52 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: LEONARD BAKER, M.D. is a Developmental - Behavioral Pediatrics Physician ([object Object]) practicing in LA CANADA, California with a Medicare Part D prescribing footprint of 218 claims across 12 beneficiaries . Industry payments of $877.61 across 52 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: LEONARD BAKER, M.D. filed 218 Medicare Part D claims in 2023 across LA CANADA, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

LEONARD BAKER, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

LEONARD BAKER, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 04/04/2007

NPI 1255453627

Primary specialty

Developmental - Behavioral Pediatrics Physician

Niche

946 US NPIs in this specialty

Medicare Part D claims

218 25% vs specialty avg

2023 prescription claims

Specialty avg: 175

Specialty distribution in California

How Developmental - Behavioral Pediatrics Physician compares to other specialties among California providers

California providers

Developmental - Behavioral Pediatrics Physician share within California

1. Developmental - Behavioral Pediatrics Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Developmental - Behavioral Pediatrics Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Developmental - Behavioral Pediatrics Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Developmental - Behavioral Pediatrics Physician ABMS/AOA estimate

Est. board-certified rate (Developmental - Behavioral Pediatrics Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Developmental - Behavioral Pediatrics Physician) — ABMS / AOA estimate

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).

LEONARD BAKER, M.D. is a Developmental - Behavioral Pediatrics Physician provider practicing in LA CANADA, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1255453627. 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.

LEONARD BAKER, M.D. appears in the CMS NPPES registry as a Developmental - Behavioral Pediatrics Physician provider holding M.D. credentials at 1346 FOOTHILL BLVD STE 301, LA CANADA, CA, 91011, with a listed phone of (818) 790-1587. NPI 1255453627 was issued on 04/04/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BAKER 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 218 prescription claims written by this provider, covering 12 Medicare beneficiaries and totaling roughly $16K in drug spend. 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.

Developmental - Behavioral Pediatrics Physician is a narrow specialty nationwide, with 946 enrolled providers across 52 states and an average of 175 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

1346 FOOTHILL BLVD STE 301
LA CANADA, CA 91011

Provider Details

NPI 1255453627
Specialty Developmental - Behavioral Pediatrics Physician
Credentials M.D.
Gender Male
NPI Issued 04/04/2007

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for LEONARD BAKER, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$878

Largest payer

Supernus Pharmaceuticals, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

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 LEONARD BAKER, M.D.. To verify LEONARD BAKER, 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.

Medicare Part D Prescribing Data

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

218
Total Claims
$16K
Total Drug Cost
12
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
291
Total Day Supply
8,571
Generic Drug Cost
$12K

Patient Demographics

Average Patient Age
46.8 years
Avg HCC Risk Score
0.53

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Citalopram Hbr
Citalopram Hydrobromide
30
Propranolol Hcl
21
Dexmethylphenidate Hcl Er
Dexmethylphenidate Hcl
18
Atomoxetine Hcl
14
Fluvoxamine Maleate
12
Guanfacine Hcl Er
Guanfacine Hcl
12
Oxcarbazepine
12

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

Developmental - Behavioral Pediatrics Physician Overview

How LEONARD BAKER, M.D. fits within the Developmental - Behavioral Pediatrics Physician landscape nationally.

946
Developmental - Behavioral Pediatrics Physician Providers in US
52
States with Developmental - Behavioral Pediatrics Physician
175
Avg Claims per Provider

LEONARD BAKER, M.D.'s 218 claims are above the specialty average of 175.

Nearby Developmental - Behavioral Pediatrics Physician Providers in California

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

Compare Developmental - Behavioral Pediatrics Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is LEONARD BAKER, M.D.'s specialty?
LEONARD BAKER, M.D. specializes in Developmental - Behavioral Pediatrics Physician and practices in LA CANADA, California. Credentials: M.D..
How much does LEONARD BAKER, M.D. prescribe under Medicare Part D?
In 2023, LEONARD BAKER, M.D. wrote 218 Medicare Part D claims totaling $16K in drug costs for 12 beneficiaries.
Where is LEONARD BAKER, M.D. located?
LEONARD BAKER, M.D. is located at 1346 FOOTHILL BLVD STE 301, LA CANADA, CA, 91011. Phone: (818) 790-1587.
What is LEONARD BAKER, M.D.'s NPI number?
LEONARD BAKER, M.D.'s National Provider Identifier (NPI) is 1255453627, issued on 04/04/2007.
How many Developmental - Behavioral Pediatrics Physician providers are there in the US?
There are 946 Developmental - Behavioral Pediatrics Physician providers across 52 states in the US. The average Developmental - Behavioral Pediatrics Physician provider writes 175 Medicare Part D claims per year.
What drugs does LEONARD BAKER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, LEONARD BAKER, M.D.'s most frequently prescribed drugs include Citalopram Hbr, Propranolol Hcl, Dexmethylphenidate Hcl Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LEONARD BAKER, M.D. accept Medicare?
LEONARD BAKER, M.D. appears in CMS Medicare data with 218 Part D claims and 12 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LEONARD BAKER, M.D.'s credentials?
LEONARD BAKER, M.D.'s NPI is 1255453627 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.
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