2026 NPPES data Addiction Medicine (Internal Medicine) Physician NPI 1679599377 M.D.
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JANE MCCLENAHAN, M.D.

Addiction Medicine (Internal Medicine) Physician in ATASCADERO, 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
36
Medicare Part D claims · 17 beneficiaries · Addiction Medicine (Internal Medicine) Physician avg: 1K

What the federal data shows

JANE MCCLENAHAN, M.D. filed 36 Medicare Part D claims in 2023 as a Addiction Medicine (Internal Medicine) Physician in ATASCADERO, California.

36
Part D claims, 2023

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.

JANE MCCLENAHAN, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

36 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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)

JANE MCCLENAHAN, 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 JANE MCCLENAHAN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 07/14/2006

NPI 1679599377

Primary specialty

Addiction Medicine (Internal Medicine) Physician

Niche

553 US NPIs in this specialty

Medicare Part D claims

36 97% vs specialty avg

2023 prescription claims

Specialty avg: 1,403

Specialty distribution in California

How Addiction Medicine (Internal Medicine) Physician compares to other specialties among California providers

California providers

Addiction Medicine (Internal Medicine) Physician share within California

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

Specialty board-certification context

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

Quality data not reported
Est. board-certified rate
78%
Addiction Medicine (Internal Medicine) Physician ABMS/AOA estimate

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

0%100%78%
Est. board-certified rate (Addiction Medicine (Internal 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).

JANE MCCLENAHAN, M.D. is a Addiction Medicine (Internal Medicine) Physician provider practicing in ATASCADERO, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1679599377. 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.

JANE MCCLENAHAN, M.D. appears in the CMS NPPES registry as a Addiction Medicine (Internal Medicine) Physician provider holding M.D. credentials at 10333 EL CAMINO REAL, ATASCADERO, CA, 93422, with a listed phone of (805) 468-2188. NPI 1679599377 was issued on 07/14/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MCCLENAHAN 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 36 prescription claims written by this provider, covering 17 Medicare beneficiaries and totaling roughly $3K 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.

Addiction Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 553 enrolled providers across 46 states and an average of 1,403 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

10333 EL CAMINO REAL
ATASCADERO, CA 93422

Provider Details

NPI 1679599377
Specialty Addiction Medicine (Internal Medicine) Physician
Credentials M.D.
Gender Female
NPI Issued 07/14/2006

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 JANE MCCLENAHAN, M.D.. To verify JANE MCCLENAHAN, 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.

36
Total Claims
$3K
Total Drug Cost
17
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
79
Total Day Supply
2,318
Generic Drug Cost
$1K

Patient Demographics

Average Patient Age
71.4 years
Avg HCC Risk Score
1.53

Addiction Medicine (Internal Medicine) Physician Overview

How JANE MCCLENAHAN, M.D. fits within the Addiction Medicine (Internal Medicine) Physician landscape nationally.

553
Addiction Medicine (Internal Medicine) Physician Providers in US
46
States with Addiction Medicine (Internal Medicine) Physician
1,403
Avg Claims per Provider

JANE MCCLENAHAN, M.D.'s 36 claims are below the specialty average of 1,403.

Nearby Addiction Medicine (Internal Medicine) Physician Providers in California

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

Compare Addiction Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JANE MCCLENAHAN, M.D.'s specialty?
JANE MCCLENAHAN, M.D. specializes in Addiction Medicine (Internal Medicine) Physician and practices in ATASCADERO, California. Credentials: M.D..
How much does JANE MCCLENAHAN, M.D. prescribe under Medicare Part D?
In 2023, JANE MCCLENAHAN, M.D. wrote 36 Medicare Part D claims totaling $3K in drug costs for 17 beneficiaries.
Where is JANE MCCLENAHAN, M.D. located?
JANE MCCLENAHAN, M.D. is located at 10333 EL CAMINO REAL, ATASCADERO, CA, 93422. Phone: (805) 468-2188.
What is JANE MCCLENAHAN, M.D.'s NPI number?
JANE MCCLENAHAN, M.D.'s National Provider Identifier (NPI) is 1679599377, issued on 07/14/2006.
How many Addiction Medicine (Internal Medicine) Physician providers are there in the US?
There are 553 Addiction Medicine (Internal Medicine) Physician providers across 46 states in the US. The average Addiction Medicine (Internal Medicine) Physician provider writes 1,403 Medicare Part D claims per year.
Does JANE MCCLENAHAN, M.D. accept Medicare?
JANE MCCLENAHAN, M.D. appears in CMS Medicare data with 36 Part D claims and 17 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JANE MCCLENAHAN, M.D.'s credentials?
JANE MCCLENAHAN, M.D.'s NPI is 1679599377 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