2026 NPPES data Nephrology Physician NPI 1619976784 M.D.
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IRMA HARRIMAN, M.D.

Nephrology Physician in PANORAMA CITY, 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
25
Medicare Part D claims · Nephrology Physician avg: 1K
What the federal data reveals: IRMA HARRIMAN, M.D. is a Nephrology Physician ([object Object]) practicing in PANORAMA CITY, California with a Medicare Part D prescribing footprint of 25 claims .

What stands out: IRMA HARRIMAN, M.D. filed 25 Medicare Part D claims in 2023 across PANORAMA CITY, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

IRMA HARRIMAN, 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).

IRMA HARRIMAN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/20/2005

NPI 1619976784

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

25 98% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in California

How Nephrology Physician compares to other specialties among California providers

California providers

Nephrology Physician share within California

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

Specialty board-certification context

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

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

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

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

IRMA HARRIMAN, M.D. is a Nephrology Physician provider practicing in PANORAMA CITY, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1619976784. 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.

IRMA HARRIMAN, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at 14860 ROSCOE BLVD, PANORAMA CITY, CA, 91402, with a listed phone of (818) 901-9906. NPI 1619976784 was issued on 07/20/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HARRIMAN 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 25 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $367 in drug spend. 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.

Nephrology Physician is a mid-sized specialty nationwide, with 10,534 enrolled providers across 55 states and an average of 1,454 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

14860 ROSCOE BLVD
PANORAMA CITY, CA 91402

Provider Details

NPI 1619976784
Specialty Nephrology Physician
Credentials M.D.
Gender Female
NPI Issued 07/20/2005

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 IRMA HARRIMAN, M.D.. To verify IRMA HARRIMAN, 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.

25
Total Claims
$367
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
31
Total Day Supply
905
Brand Drug Cost
$0
Generic Drug Cost
$367

Patient Demographics

Average Patient Age
73.5 years
Avg HCC Risk Score
1.05

Nephrology Physician Overview

How IRMA HARRIMAN, M.D. fits within the Nephrology Physician landscape nationally.

10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider

IRMA HARRIMAN, M.D.'s 25 claims are below the specialty average of 1,454.

Nearby Nephrology Physician Providers in California

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

Compare Nephrology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is IRMA HARRIMAN, M.D.'s specialty?
IRMA HARRIMAN, M.D. specializes in Nephrology Physician and practices in PANORAMA CITY, California. Credentials: M.D..
How much does IRMA HARRIMAN, M.D. prescribe under Medicare Part D?
In 2023, IRMA HARRIMAN, M.D. wrote 25 Medicare Part D claims totaling $367 in drug costs for N/A beneficiaries.
Where is IRMA HARRIMAN, M.D. located?
IRMA HARRIMAN, M.D. is located at 14860 ROSCOE BLVD, PANORAMA CITY, CA, 91402. Phone: (818) 901-9906.
What is IRMA HARRIMAN, M.D.'s NPI number?
IRMA HARRIMAN, M.D.'s National Provider Identifier (NPI) is 1619976784, issued on 07/20/2005.
How many Nephrology Physician providers are there in the US?
There are 10,534 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
Does IRMA HARRIMAN, M.D. accept Medicare?
IRMA HARRIMAN, M.D. appears in CMS Medicare data with 25 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify IRMA HARRIMAN, M.D.'s credentials?
IRMA HARRIMAN, M.D.'s NPI is 1619976784 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