2026 NPPES data Sports Medicine Podiatrist NPI 1851546790 DPM
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MARIE SAINT LOUIS, DPM

Sports Medicine Podiatrist in PASADENA, 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
209
Medicare Part D claims · 109 beneficiaries · Sports Medicine Podiatrist avg: 253
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: MARIE SAINT LOUIS, DPM is a Sports Medicine Podiatrist ([object Object]) practicing in PASADENA, California with a Medicare Part D prescribing footprint of 209 claims across 109 beneficiaries — 10% brand-name prescribing .

What stands out: MARIE SAINT LOUIS, DPM filed 209 Medicare Part D claims in 2023 across PASADENA, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

MARIE SAINT LOUIS, DPM at a glance

Quality data not reported

NPI registry status

Active

Issued 11/19/2008

NPI 1851546790

Primary specialty

Sports Medicine Podiatrist

Rare

134 US NPIs in this specialty

Medicare Part D claims

209 17% vs specialty avg

2023 prescription claims

Specialty avg: 253

Specialty distribution in California

How Sports Medicine Podiatrist compares to other specialties among California providers

California providers

Sports Medicine Podiatrist share within California

1. Sports Medicine Podiatrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Sports Medicine Podiatrist share within California

Specialty board-certification context

Estimated specialty board-certified rate — Sports Medicine Podiatrist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Sports Medicine Podiatrist ABMS/AOA estimate

Est. board-certified rate (Sports Medicine Podiatrist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Sports Medicine Podiatrist) — 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).

MARIE SAINT LOUIS, DPM is a Sports Medicine Podiatrist provider practicing in PASADENA, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DPM. NPI: 1851546790. 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.

MARIE SAINT LOUIS, DPM appears in the CMS NPPES registry as a Sports Medicine Podiatrist provider holding DPM credentials at 393 E WALNUT ST FL 3, PASADENA, CA, 91188, with a listed phone of (917) 727-4302. NPI 1851546790 was issued on 11/19/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SAINT LOUIS 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 209 prescription claims written by this provider, covering 109 Medicare beneficiaries and totaling roughly $7K in drug spend, split 10% brand-name and 90% 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.

Sports Medicine Podiatrist is a narrow specialty nationwide, with 134 enrolled providers across 30 states and an average of 253 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

393 E WALNUT ST FL 3
PASADENA, CA 91188

Provider Details

NPI 1851546790
Specialty Sports Medicine Podiatrist
Credentials DPM
Gender Female
NPI Issued 11/19/2008

Hospital and facility affiliations

Facilities where MARIE SAINT LOUIS, DPM 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.

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP
LOS ANGELES, 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 MARIE SAINT LOUIS, DPM. To verify MARIE SAINT LOUIS, DPM'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

MARIE SAINT LOUIS, DPM — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 209 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.

209
Total Claims
$7K
Total Drug Cost
109
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
209
Total Day Supply
4,823
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$4K
Generic Drug Cost
$3K
Antibiotic Claims
44

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
1.81
Gender Split
52% female / 48% male
Age Distribution
<65: 13, 65-74: 54, 75-84: 28, 85+: 14

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Ketoconazole
96
Doxycycline Monohydrate
16
Santyl
Collagenase Clostridium Hist.
13
Fluocinonide
11

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

Sports Medicine Podiatrist Overview

How MARIE SAINT LOUIS, DPM fits within the Sports Medicine Podiatrist landscape nationally.

134
Sports Medicine Podiatrist Providers in US
30
States with Sports Medicine Podiatrist
253
Avg Claims per Provider

MARIE SAINT LOUIS, DPM's 209 claims are below the specialty average of 253.

Nearby Sports Medicine Podiatrist Providers in California

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

Compare Sports Medicine Podiatrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARIE SAINT LOUIS, DPM's specialty?
MARIE SAINT LOUIS, DPM specializes in Sports Medicine Podiatrist and practices in PASADENA, California. Credentials: DPM.
How much does MARIE SAINT LOUIS, DPM prescribe under Medicare Part D?
In 2023, MARIE SAINT LOUIS, DPM wrote 209 Medicare Part D claims totaling $7K in drug costs for 109 beneficiaries.
Where is MARIE SAINT LOUIS, DPM located?
MARIE SAINT LOUIS, DPM is located at 393 E WALNUT ST FL 3, PASADENA, CA, 91188. Phone: (917) 727-4302.
What is MARIE SAINT LOUIS, DPM's NPI number?
MARIE SAINT LOUIS, DPM's National Provider Identifier (NPI) is 1851546790, issued on 11/19/2008.
Does MARIE SAINT LOUIS, DPM prescribe more brand-name or generic drugs?
MARIE SAINT LOUIS, DPM's prescribing is 10% brand-name and 90% generic drugs by claim count, with $4K in brand drug costs.
How many Sports Medicine Podiatrist providers are there in the US?
There are 134 Sports Medicine Podiatrist providers across 30 states in the US. The average Sports Medicine Podiatrist provider writes 253 Medicare Part D claims per year.
What drugs does MARIE SAINT LOUIS, DPM prescribe most often?
Based on 2023 Medicare Part D data, MARIE SAINT LOUIS, DPM's most frequently prescribed drugs include Ketoconazole, Doxycycline Monohydrate, Santyl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARIE SAINT LOUIS, DPM accept Medicare?
MARIE SAINT LOUIS, DPM appears in CMS Medicare data with 209 Part D claims and 109 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARIE SAINT LOUIS, DPM's credentials?
MARIE SAINT LOUIS, DPM's NPI is 1851546790 with credentials DPM. 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