2026 NPPES data Psychosomatic Medicine Physician NPI 1922392828 M.D.
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ERIC GORINSTEIN, M.D.

Psychosomatic Medicine Physician in CHATSWORTH, 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
2K
Medicare Part D claims · 114 beneficiaries · Psychosomatic Medicine Physician avg: 645
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: ERIC GORINSTEIN, M.D. is a Psychosomatic Medicine Physician ([object Object]) practicing in CHATSWORTH, California with a Medicare Part D prescribing footprint of 2K claims across 114 beneficiaries — 6% brand-name prescribing .

What stands out: ERIC GORINSTEIN, M.D. filed 1,819 Medicare Part D claims in 2023 across CHATSWORTH, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ERIC GORINSTEIN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

ERIC GORINSTEIN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 06/08/2011

NPI 1922392828

Primary specialty

Psychosomatic Medicine Physician

Rare

491 US NPIs in this specialty

Medicare Part D claims

1,819 182% vs specialty avg

2023 prescription claims

Specialty avg: 645

Specialty distribution in California

How Psychosomatic Medicine Physician compares to other specialties among California providers

California providers

Psychosomatic Medicine Physician share within California

1. Psychosomatic Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychosomatic Medicine Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Psychosomatic Medicine Physician (ABMS / AOA reference)

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

Est. board-certified rate (Psychosomatic Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Psychosomatic 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).

ERIC GORINSTEIN, M.D. is a Psychosomatic Medicine Physician provider practicing in CHATSWORTH, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1922392828. 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.

ERIC GORINSTEIN, M.D. appears in the CMS NPPES registry as a Psychosomatic Medicine Physician provider holding M.D. credentials at 20151 NORDHOFF ST, CHATSWORTH, CA, 91311, with a listed phone of (818) 407-3200. NPI 1922392828 was issued on 06/08/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GORINSTEIN 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 1,819 prescription claims written by this provider, covering 114 Medicare beneficiaries and totaling roughly $324K in drug spend, split 6% brand-name and 94% 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.

Psychosomatic Medicine Physician is a narrow specialty nationwide, with 491 enrolled providers across 43 states and an average of 645 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

20151 NORDHOFF ST
CHATSWORTH, CA 91311

Provider Details

NPI 1922392828
Specialty Psychosomatic Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 06/08/2011

Hospital and facility affiliations

Facilities where ERIC GORINSTEIN, 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.

LOS ANGELES COUNTY DEPARTMENT OF MENTAL HEALTH
CHATSWORTH, 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 ERIC GORINSTEIN, M.D.. To verify ERIC GORINSTEIN, 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 · Generic-heavy

ERIC GORINSTEIN, M.D. — brand share 6.0%
Specialty average (est.)

6% brand-name claims vs 94% generic, on 1,819 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.

1,819
Total Claims
$324K
Total Drug Cost
114
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,233
Total Day Supply
66,068
Brand vs Generic
6% brand / 94% generic
Brand Drug Cost
$237K
Generic Drug Cost
$87K

Patient Demographics

Average Patient Age
56.4 years
Avg HCC Risk Score
1.15
Gender Split
45% female / 55% male
Age Distribution
<65: 75, 65-74: 32, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Aripiprazole
137
Quetiapine Fumarate
127
Trazodone Hcl
112
Olanzapine
109
Sertraline Hcl
91
Duloxetine Hcl
83
Lamotrigine
82
Bupropion Xl
Bupropion Hcl
76
Fluoxetine Hcl
64
Divalproex Sodium Er
Divalproex Sodium
62

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

Psychosomatic Medicine Physician Overview

How ERIC GORINSTEIN, M.D. fits within the Psychosomatic Medicine Physician landscape nationally.

491
Psychosomatic Medicine Physician Providers in US
43
States with Psychosomatic Medicine Physician
645
Avg Claims per Provider

ERIC GORINSTEIN, M.D.'s 1,819 claims are above the specialty average of 645.

Nearby Psychosomatic Medicine Physician Providers in California

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

Compare Psychosomatic Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ERIC GORINSTEIN, M.D.'s specialty?
ERIC GORINSTEIN, M.D. specializes in Psychosomatic Medicine Physician and practices in CHATSWORTH, California. Credentials: M.D..
How much does ERIC GORINSTEIN, M.D. prescribe under Medicare Part D?
In 2023, ERIC GORINSTEIN, M.D. wrote 1,819 Medicare Part D claims totaling $324K in drug costs for 114 beneficiaries.
Where is ERIC GORINSTEIN, M.D. located?
ERIC GORINSTEIN, M.D. is located at 20151 NORDHOFF ST, CHATSWORTH, CA, 91311. Phone: (818) 407-3200.
What is ERIC GORINSTEIN, M.D.'s NPI number?
ERIC GORINSTEIN, M.D.'s National Provider Identifier (NPI) is 1922392828, issued on 06/08/2011.
Does ERIC GORINSTEIN, M.D. prescribe more brand-name or generic drugs?
ERIC GORINSTEIN, M.D.'s prescribing is 6% brand-name and 94% generic drugs by claim count, with $237K in brand drug costs.
How many Psychosomatic Medicine Physician providers are there in the US?
There are 491 Psychosomatic Medicine Physician providers across 43 states in the US. The average Psychosomatic Medicine Physician provider writes 645 Medicare Part D claims per year.
What drugs does ERIC GORINSTEIN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ERIC GORINSTEIN, M.D.'s most frequently prescribed drugs include Aripiprazole, Quetiapine Fumarate, Trazodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERIC GORINSTEIN, M.D. accept Medicare?
ERIC GORINSTEIN, M.D. appears in CMS Medicare data with 1,819 Part D claims and 114 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ERIC GORINSTEIN, M.D.'s credentials?
ERIC GORINSTEIN, M.D.'s NPI is 1922392828 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