2026 NPPES data Student in an Organized Health Care Education/Training Program NPI 1548454572 M.D.
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GEORGE CHERNIS, M.D.

Student in an Organized Health Care Education/Training Program in SYLMAR, 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
553
Medicare Part D claims · 178 beneficiaries · Student in an Organized Health Care Education/Training Program avg: 459
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

GEORGE CHERNIS, M.D. filed 553 Medicare Part D claims in 2023 as a Student in an Organized Health Care Education/Training Program in SYLMAR, California, prescribing 80% generic.

553
Part D claims, 2023
80%
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.

GEORGE CHERNIS, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

553 Top 34% higher than 66% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 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

What does the federal data show about GEORGE CHERNIS, M.D.?

Quality data not reported

NPI registry status

Active

Issued 09/04/2007

NPI 1548454572

Primary specialty

Student in an Organized Health Care Education/Training Program

High-volume

331,761 US NPIs in this specialty

Medicare Part D claims

553 20% vs specialty avg

2023 prescription claims

Specialty avg: 459

Specialty distribution in California

How Student in an Organized Health Care Education/Training Program compares to other specialties among California providers

California providers

Student in an Organized Health Care Education/Training Program share within California

1. Student in an Organized Health Care Education/Training Program42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Student in an Organized Health Care Education/Training Program share within California

Specialty board-certification context

Estimated specialty board-certified rate — Student in an Organized Health Care Education/Training Program (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Student in an Organized Health Care Education/Training Program ABMS/AOA estimate

Est. board-certified rate (Student in an Organized Health Care Education/Training Program) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Student in an Organized Health Care Education/Training Program) — 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).

GEORGE CHERNIS, M.D. appears in the CMS NPPES registry as a Student in an Organized Health Care Education/Training Program provider holding M.D. credentials at 14445 OLIVE VIEW DR, SYLMAR, CA, 91342, with a listed phone of (818) 364-3205. NPI 1548454572 was issued on 09/04/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHERNIS 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 553 prescription claims written by this provider, covering 178 Medicare beneficiaries and totaling roughly $48K in drug spend, split 20% brand-name and 80% generic by claim count, with an opioid prescribing rate of 3.8%. 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.

Student in an Organized Health Care Education/Training Program is a high-volume specialty nationwide, with 331,761 enrolled providers across 55 states and an average of 459 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

14445 OLIVE VIEW DR
SYLMAR, CA 91342

Provider Details

NPI 1548454572
Specialty Student in an Organized Health Care Education/Training Program
Credentials M.D.
Gender Male
NPI Issued 09/04/2007

Hospital and facility affiliations

Facilities where GEORGE CHERNIS, 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.

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 GEORGE CHERNIS, M.D.. To verify GEORGE CHERNIS, 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

GEORGE CHERNIS, M.D. — brand share 20.0%
Specialty average (est.)

20% brand-name claims vs 80% generic, on 553 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.

553
Total Claims
$48K
Total Drug Cost
178
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,201
Total Day Supply
33,395
Brand vs Generic
20% brand / 80% generic
Brand Drug Cost
$37K
Generic Drug Cost
$10K
Opioid Claims
21 (3.8% rate)
Antibiotic Claims
58

Patient Demographics

Average Patient Age
77.2 years
Avg HCC Risk Score
2.80
Gender Split
58% female / 42% male
Age Distribution
<65: 14, 65-74: 57, 75-84: 67, 85+: 40

Top Prescribed Drugs (Medicare Part D)

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

What GEORGE CHERNIS, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
35
Furosemide
28
Albuterol Sulfate Hfa
Albuterol Sulfate
21
Potassium Chloride
21
Amlodipine Besylate
19
Cefpodoxime Proxetil
19
Pradaxa
Dabigatran Etexilate Mesylate
18
Prednisone
17
Lactulose
16
Clopidogrel
Clopidogrel Bisulfate
15

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

Student in an Organized Health Care Education/Training Program Overview

How GEORGE CHERNIS, M.D. fits within the Student in an Organized Health Care Education/Training Program landscape nationally.

331,761
Student in an Organized Health Care Education/Training Program Providers in US
55
States with Student in an Organized Health Care Education/Training Program
459
Avg Claims per Provider

GEORGE CHERNIS, M.D.'s 553 claims are above the specialty average of 459.

Nearby Student in an Organized Health Care Education/Training Program Providers in California

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

Compare Student in an Organized Health Care Education/Training Program nationally: see state-by-state distribution →

Frequently Asked Questions

What is GEORGE CHERNIS, M.D.'s specialty?
GEORGE CHERNIS, M.D. specializes in Student in an Organized Health Care Education/Training Program and practices in SYLMAR, California. Credentials: M.D..
How much does GEORGE CHERNIS, M.D. prescribe under Medicare Part D?
In 2023, GEORGE CHERNIS, M.D. wrote 553 Medicare Part D claims totaling $48K in drug costs for 178 beneficiaries.
Where is GEORGE CHERNIS, M.D. located?
GEORGE CHERNIS, M.D. is located at 14445 OLIVE VIEW DR, SYLMAR, CA, 91342. Phone: (818) 364-3205.
What is GEORGE CHERNIS, M.D.'s NPI number?
GEORGE CHERNIS, M.D.'s National Provider Identifier (NPI) is 1548454572, issued on 09/04/2007.
Does GEORGE CHERNIS, M.D. prescribe more brand-name or generic drugs?
GEORGE CHERNIS, M.D.'s prescribing is 20% brand-name and 80% generic drugs by claim count, with $37K in brand drug costs.
Does GEORGE CHERNIS, M.D. prescribe opioids?
Yes, GEORGE CHERNIS, M.D. had 21 opioid claims in 2023 with an opioid prescribing rate of 3.8%.
How many Student in an Organized Health Care Education/Training Program providers are there in the US?
There are 331,761 Student in an Organized Health Care Education/Training Program providers across 55 states in the US. The average Student in an Organized Health Care Education/Training Program provider writes 459 Medicare Part D claims per year.
What drugs does GEORGE CHERNIS, M.D. prescribe most often?
Based on 2023 Medicare Part D data, GEORGE CHERNIS, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Furosemide, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GEORGE CHERNIS, M.D. accept Medicare?
GEORGE CHERNIS, M.D. appears in CMS Medicare data with 553 Part D claims and 178 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GEORGE CHERNIS, M.D.'s credentials?
GEORGE CHERNIS, M.D.'s NPI is 1548454572 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