2026 NPPES data Internal Medicine Physician NPI 1053586941 MD
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CLAUDIA COX, MD

Internal Medicine Physician in JOHNSON CITY, Tennessee. 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
197
Medicare Part D claims · 86 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$18.91
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CLAUDIA COX, MD filed 197 Medicare Part D claims in 2023 as a Internal Medicine Physician in JOHNSON CITY, Tennessee, prescribing 87% generic.

197
Part D claims, 2023
87%
generic prescribing
Likely
board-certified (heuristic)

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.

CLAUDIA COX, MD's Medicare Part D volume vs every U.S. prescriber

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

197 35th percentile higher than 35% 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 certification likely (heuristic — not verified)

CLAUDIA COX, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 4 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about CLAUDIA COX, MD?

Quality data not reported

NPI registry status

Active

Issued 04/23/2008

NPI 1053586941

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

197 93% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Tennessee

How Internal Medicine Physician compares to other specialties among Tennessee providers

Tennessee providers

Internal Medicine Physician share within Tennessee

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

Specialty board-certification context

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

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

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

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

CLAUDIA COX, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 119 BOONE RIDGE DR, JOHNSON CITY, TN, 37615, with a listed phone of (423) 282-1480. NPI 1053586941 was issued on 04/23/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what COX 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 197 prescription claims written by this provider, covering 86 Medicare beneficiaries and totaling roughly $12K in drug spend, split 13% brand-name and 87% 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

119 BOONE RIDGE DR
JOHNSON CITY, TN 37615

Provider Details

NPI 1053586941
Specialty Internal Medicine Physician
Credentials MD
Gender Female
NPI Issued 04/23/2008

Hospital and facility affiliations

Facilities where CLAUDIA COX, MD 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.

BLUE RIDGE MEDICAL MANAGEMENT CORPORATION
GREENEVILLE, TN
COOKEVILLE HOSPITALIST GROUP PLLC
COOKEVILLE, TN
SOUTHEASTERN PHYSICIAN SERVICES PC
JOHNSON CITY, TN
TUSCULUM PHYSICIAN SERVICES PC
GREENEVILLE, TN

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for CLAUDIA COX, MD. Source: openpaymentsdata.cms.gov.

Total received

$19

Largest payer

La Jolla Pharmaceutical Company

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Typical

CLAUDIA COX, MD — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 197 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.

197
Total Claims
$12K
Total Drug Cost
86
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
222
Total Day Supply
4,993
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$9K
Generic Drug Cost
$3K
Antibiotic Claims
27

Patient Demographics

Average Patient Age
69.1 years
Avg HCC Risk Score
2.65
Gender Split
55% female / 45% male
Age Distribution
<65: 27, 65-74: 26, 75-84: N/A, 85+: N/A

Internal Medicine Physician Overview

How CLAUDIA COX, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

CLAUDIA COX, MD's 197 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Tennessee

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

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

Frequently Asked Questions

What is CLAUDIA COX, MD's specialty?
CLAUDIA COX, MD specializes in Internal Medicine Physician and practices in JOHNSON CITY, Tennessee. Credentials: MD.
How much does CLAUDIA COX, MD prescribe under Medicare Part D?
In 2023, CLAUDIA COX, MD wrote 197 Medicare Part D claims totaling $12K in drug costs for 86 beneficiaries.
Where is CLAUDIA COX, MD located?
CLAUDIA COX, MD is located at 119 BOONE RIDGE DR, JOHNSON CITY, TN, 37615. Phone: (423) 282-1480.
What is CLAUDIA COX, MD's NPI number?
CLAUDIA COX, MD's National Provider Identifier (NPI) is 1053586941, issued on 04/23/2008.
Does CLAUDIA COX, MD prescribe more brand-name or generic drugs?
CLAUDIA COX, MD's prescribing is 13% brand-name and 87% generic drugs by claim count, with $9K in brand drug costs.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
Does CLAUDIA COX, MD accept Medicare?
CLAUDIA COX, MD appears in CMS Medicare data with 197 Part D claims and 86 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CLAUDIA COX, MD's credentials?
CLAUDIA COX, MD's NPI is 1053586941 with credentials MD. 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