2026 NPPES data Clinical Cardiac Electrophysiology Physician NPI 1700862547 M.D.
Verify on CMS →

STEPHEN EHRLICH, M.D.

Clinical Cardiac Electrophysiology Physician in MISSION VIEJO, 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
270
Medicare Part D claims · 109 beneficiaries · Clinical Cardiac Electrophysiology Physician avg: 2K
Generic prescribing
79%
generic claims · 21% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

STEPHEN EHRLICH, M.D. filed 270 Medicare Part D claims in 2023 as a Clinical Cardiac Electrophysiology Physician in MISSION VIEJO, California, prescribing 79% generic.

270
Part D claims, 2023
79%
generic prescribing

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.

STEPHEN EHRLICH, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

270 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

STEPHEN EHRLICH, 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).

What does the federal data show about STEPHEN EHRLICH, M.D.?

Quality data not reported

NPI registry status

Active

Issued 12/22/2005

NPI 1700862547

Primary specialty

Clinical Cardiac Electrophysiology Physician

Niche

1,570 US NPIs in this specialty

Medicare Part D claims

270 83% vs specialty avg

2023 prescription claims

Specialty avg: 1,596

Specialty distribution in California

How Clinical Cardiac Electrophysiology Physician compares to other specialties among California providers

California providers

Clinical Cardiac Electrophysiology Physician share within California

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

Specialty board-certification context

Estimated specialty board-certified rate — Clinical Cardiac Electrophysiology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Clinical Cardiac Electrophysiology Physician ABMS/AOA estimate

Est. board-certified rate (Clinical Cardiac Electrophysiology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Clinical Cardiac Electrophysiology 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 EHRLICH, M.D. is a Clinical Cardiac Electrophysiology Physician provider practicing in MISSION VIEJO, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1700862547. 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 EHRLICH, M.D. appears in the CMS NPPES registry as a Clinical Cardiac Electrophysiology Physician provider holding M.D. credentials at 27800 MEDICAL CENTER RD, MISSION VIEJO, CA, 92691, with a listed phone of (949) 276-2446. NPI 1700862547 was issued on 12/22/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what EHRLICH 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 270 prescription claims written by this provider, covering 109 Medicare beneficiaries and totaling roughly $66K in drug spend, split 21% brand-name and 79% 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.

Clinical Cardiac Electrophysiology Physician is a narrow specialty nationwide, with 1,570 enrolled providers across 52 states and an average of 1,596 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

27800 MEDICAL CENTER RD
MISSION VIEJO, CA 92691

Provider Details

NPI 1700862547
Specialty Clinical Cardiac Electrophysiology Physician
Credentials M.D.
Gender Male
NPI Issued 12/22/2005

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 EHRLICH, M.D.. To verify STEPHEN EHRLICH, 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

STEPHEN EHRLICH, M.D. — brand share 21.0%
Specialty average (est.)

21% brand-name claims vs 79% generic, on 270 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.

270
Total Claims
$66K
Total Drug Cost
109
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
697
Total Day Supply
20,859
Brand vs Generic
21% brand / 79% generic
Brand Drug Cost
$59K
Generic Drug Cost
$6K

Patient Demographics

Average Patient Age
78.8 years
Avg HCC Risk Score
1.71
Gender Split
43% female / 57% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Carvedilol
29
Eliquis
Apixaban
27
Sotalol
Sotalol Hcl
21
Atorvastatin Calcium
14
Diltiazem 24hr Er (Cd)
Diltiazem Hcl
12
Flecainide Acetate
11
Livalo
Pitavastatin Calcium
11

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

Clinical Cardiac Electrophysiology Physician Overview

How STEPHEN EHRLICH, M.D. fits within the Clinical Cardiac Electrophysiology Physician landscape nationally.

1,570
Clinical Cardiac Electrophysiology Physician Providers in US
52
States with Clinical Cardiac Electrophysiology Physician
1,596
Avg Claims per Provider

STEPHEN EHRLICH, M.D.'s 270 claims are below the specialty average of 1,596.

Nearby Clinical Cardiac Electrophysiology Physician Providers in California

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

Compare Clinical Cardiac Electrophysiology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is STEPHEN EHRLICH, M.D.'s specialty?
STEPHEN EHRLICH, M.D. specializes in Clinical Cardiac Electrophysiology Physician and practices in MISSION VIEJO, California. Credentials: M.D..
How much does STEPHEN EHRLICH, M.D. prescribe under Medicare Part D?
In 2023, STEPHEN EHRLICH, M.D. wrote 270 Medicare Part D claims totaling $66K in drug costs for 109 beneficiaries.
Where is STEPHEN EHRLICH, M.D. located?
STEPHEN EHRLICH, M.D. is located at 27800 MEDICAL CENTER RD, MISSION VIEJO, CA, 92691. Phone: (949) 276-2446.
What is STEPHEN EHRLICH, M.D.'s NPI number?
STEPHEN EHRLICH, M.D.'s National Provider Identifier (NPI) is 1700862547, issued on 12/22/2005.
Does STEPHEN EHRLICH, M.D. prescribe more brand-name or generic drugs?
STEPHEN EHRLICH, M.D.'s prescribing is 21% brand-name and 79% generic drugs by claim count, with $59K in brand drug costs.
How many Clinical Cardiac Electrophysiology Physician providers are there in the US?
There are 1,570 Clinical Cardiac Electrophysiology Physician providers across 52 states in the US. The average Clinical Cardiac Electrophysiology Physician provider writes 1,596 Medicare Part D claims per year.
What drugs does STEPHEN EHRLICH, M.D. prescribe most often?
Based on 2023 Medicare Part D data, STEPHEN EHRLICH, M.D.'s most frequently prescribed drugs include Carvedilol, Eliquis, Sotalol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STEPHEN EHRLICH, M.D. accept Medicare?
STEPHEN EHRLICH, M.D. appears in CMS Medicare data with 270 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 STEPHEN EHRLICH, M.D.'s credentials?
STEPHEN EHRLICH, M.D.'s NPI is 1700862547 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