2026 NPPES data Nutritionist NPI 1194237727 PHD, MS, RD, CAGS
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KELLENE ISOM, PHD, MS, RD, CAGS

Nutritionist in CLAREMONT, 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.
What the federal data reveals: KELLENE ISOM, PHD, MS, RD, CAGS is a Nutritionist ([object Object]) practicing in CLAREMONT, California .

What the federal data shows

KELLENE ISOM, PHD, MS, RD, CAGS is a Nutritionist in CLAREMONT, California, listed in the federal CMS National Provider Identifier registry.

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.

KELLENE ISOM, PHD, MS, RD, CAGS at a glance

Quality data not reported

NPI registry status

Active

Issued 11/05/2017

NPI 1194237727

Primary specialty

Nutritionist

Niche

4,801 US NPIs in this specialty

Specialty distribution in California

How Nutritionist compares to other specialties among California providers

California providers

Nutritionist share within California

1. Nutritionist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nutritionist share within California

Specialty board-certification context

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

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

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

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

KELLENE ISOM, PHD, MS, RD, CAGS is a Nutritionist provider practicing in CLAREMONT, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PHD, MS, RD, CAGS. NPI: 1194237727. 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.

KELLENE ISOM, PHD, MS, RD, CAGS appears in the CMS NPPES registry as a Nutritionist provider holding PHD, MS, RD, CAGS credentials at 4052 GAREY AVE, CLAREMONT, CA, 91711, with a listed phone of (857) 498-2524. NPI 1194237727 was issued on 11/05/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ISOM 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Nutritionist providers operate outside Part D entirely.

Nutritionist is a narrow specialty nationwide, with 4,801 enrolled providers across 54 states and an average of 1,742 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

4052 GAREY AVE
CLAREMONT, CA 91711

Provider Details

NPI 1194237727
Specialty Nutritionist
Credentials PHD, MS, RD, CAGS
Gender Female
NPI Issued 11/05/2017

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 KELLENE ISOM, PHD, MS, RD, CAGS. To verify KELLENE ISOM, PHD, MS, RD, CAGS'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.

Nutritionist Overview

How KELLENE ISOM, PHD, MS, RD, CAGS fits within the Nutritionist landscape nationally.

4,801
Nutritionist Providers in US
54
States with Nutritionist
1,742
Avg Claims per Provider

Nearby Nutritionist Providers in California

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

Compare Nutritionist nationally: see state-by-state distribution →

Frequently Asked Questions

What is KELLENE ISOM, PHD, MS, RD, CAGS's specialty?
KELLENE ISOM, PHD, MS, RD, CAGS specializes in Nutritionist and practices in CLAREMONT, California. Credentials: PHD, MS, RD, CAGS.
Where is KELLENE ISOM, PHD, MS, RD, CAGS located?
KELLENE ISOM, PHD, MS, RD, CAGS is located at 4052 GAREY AVE, CLAREMONT, CA, 91711. Phone: (857) 498-2524.
What is KELLENE ISOM, PHD, MS, RD, CAGS's NPI number?
KELLENE ISOM, PHD, MS, RD, CAGS's National Provider Identifier (NPI) is 1194237727, issued on 11/05/2017.
How many Nutritionist providers are there in the US?
There are 4,801 Nutritionist providers across 54 states in the US. The average Nutritionist provider writes 1,742 Medicare Part D claims per year.
Does KELLENE ISOM, PHD, MS, RD, CAGS accept Medicare?
KELLENE ISOM, PHD, MS, RD, CAGS appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KELLENE ISOM, PHD, MS, RD, CAGS's credentials?
KELLENE ISOM, PHD, MS, RD, CAGS's NPI is 1194237727 with credentials PHD, MS, RD, CAGS. 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.
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