2026 NPPES data Emergency Medical Services (Emergency Medicine) Physician NPI 1720348410 M.D.
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STEPHEN BAUER, M.D.

Emergency Medical Services (Emergency Medicine) Physician in LOS ANGELES, 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
237
Medicare Part D claims · 129 beneficiaries · Emergency Medical Services (Emergency Medicine) Physician avg: 394
Industry payments
$28.32
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: STEPHEN BAUER, M.D. is a Emergency Medical Services (Emergency Medicine) Physician ([object Object]) practicing in LOS ANGELES, California with a Medicare Part D prescribing footprint of 237 claims across 129 beneficiaries . Industry payments of $28.32 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: STEPHEN BAUER, M.D. filed 237 Medicare Part D claims in 2023 across LOS ANGELES, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

STEPHEN BAUER, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

STEPHEN BAUER, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 05/29/2012

NPI 1720348410

Primary specialty

Emergency Medical Services (Emergency Medicine) Physician

Niche

3,616 US NPIs in this specialty

Medicare Part D claims

237 40% vs specialty avg

2023 prescription claims

Specialty avg: 394

Specialty distribution in California

How Emergency Medical Services (Emergency Medicine) Physician compares to other specialties among California providers

California providers

Emergency Medical Services (Emergency Medicine) Physician share within California

1. Emergency Medical Services (Emergency Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Emergency Medical Services (Emergency Medicine) Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Emergency Medical Services (Emergency Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Emergency Medical Services (Emergency Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Emergency Medical Services (Emergency Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Emergency Medical Services (Emergency Medicine) 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).

STEPHEN BAUER, M.D. is a Emergency Medical Services (Emergency Medicine) Physician provider practicing in LOS ANGELES, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1720348410. 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.

STEPHEN BAUER, M.D. appears in the CMS NPPES registry as a Emergency Medical Services (Emergency Medicine) Physician provider holding M.D. credentials at 1225 WILSHIRE BLVD, LOS ANGELES, CA, 90017, with a listed phone of (213) 977-2424. NPI 1720348410 was issued on 05/29/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BAUER 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 237 prescription claims written by this provider, covering 129 Medicare beneficiaries and totaling roughly $5K in drug spend, with an opioid prescribing rate of 12.2%. 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.

Emergency Medical Services (Emergency Medicine) Physician is a narrow specialty nationwide, with 3,616 enrolled providers across 55 states and an average of 394 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

1225 WILSHIRE BLVD
LOS ANGELES, CA 90017

Provider Details

NPI 1720348410
Specialty Emergency Medical Services (Emergency Medicine) Physician
Credentials M.D.
Gender Male
NPI Issued 05/29/2012

Hospital and facility affiliations

Facilities where STEPHEN BAUER, 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.

CAN EMERGENCY PHYSICIANS MEDICAL GROUP INC
LOS ANGELES, CA
INTERCOMMUNITY EMERGENCY MEDICAL GROUP
WHITTIER, 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).

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 STEPHEN BAUER, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$28

Largest payer

ABBVIE 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 STEPHEN BAUER, M.D.. To verify STEPHEN BAUER, 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.

237
Total Claims
$5K
Total Drug Cost
129
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
238
Total Day Supply
2,535
Generic Drug Cost
$3K
Opioid Claims
29 (12.2% rate)
Antibiotic Claims
59

Patient Demographics

Average Patient Age
72.1 years
Avg HCC Risk Score
2.24
Gender Split
60% female / 40% male
Age Distribution
<65: 19, 65-74: 56, 75-84: 39, 85+: 15

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Cephalexin
28
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
23
Ondansetron Odt
Ondansetron
22
Omeprazole
14
Prednisone
12

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

Emergency Medical Services (Emergency Medicine) Physician Overview

How STEPHEN BAUER, M.D. fits within the Emergency Medical Services (Emergency Medicine) Physician landscape nationally.

3,616
Emergency Medical Services (Emergency Medicine) Physician Providers in US
55
States with Emergency Medical Services (Emergency Medicine) Physician
394
Avg Claims per Provider

STEPHEN BAUER, M.D.'s 237 claims are below the specialty average of 394.

Nearby Emergency Medical Services (Emergency Medicine) Physician Providers in California

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

Compare Emergency Medical Services (Emergency Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is STEPHEN BAUER, M.D.'s specialty?
STEPHEN BAUER, M.D. specializes in Emergency Medical Services (Emergency Medicine) Physician and practices in LOS ANGELES, California. Credentials: M.D..
How much does STEPHEN BAUER, M.D. prescribe under Medicare Part D?
In 2023, STEPHEN BAUER, M.D. wrote 237 Medicare Part D claims totaling $5K in drug costs for 129 beneficiaries.
Where is STEPHEN BAUER, M.D. located?
STEPHEN BAUER, M.D. is located at 1225 WILSHIRE BLVD, LOS ANGELES, CA, 90017. Phone: (213) 977-2424.
What is STEPHEN BAUER, M.D.'s NPI number?
STEPHEN BAUER, M.D.'s National Provider Identifier (NPI) is 1720348410, issued on 05/29/2012.
Does STEPHEN BAUER, M.D. prescribe opioids?
Yes, STEPHEN BAUER, M.D. had 29 opioid claims in 2023 with an opioid prescribing rate of 12.2%.
How many Emergency Medical Services (Emergency Medicine) Physician providers are there in the US?
There are 3,616 Emergency Medical Services (Emergency Medicine) Physician providers across 55 states in the US. The average Emergency Medical Services (Emergency Medicine) Physician provider writes 394 Medicare Part D claims per year.
What drugs does STEPHEN BAUER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, STEPHEN BAUER, M.D.'s most frequently prescribed drugs include Cephalexin, Hydrocodone-Acetaminophen, Ondansetron Odt. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STEPHEN BAUER, M.D. accept Medicare?
STEPHEN BAUER, M.D. appears in CMS Medicare data with 237 Part D claims and 129 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STEPHEN BAUER, M.D.'s credentials?
STEPHEN BAUER, M.D.'s NPI is 1720348410 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