2026 NPPES data Hospitalist Physician NPI 1215915921 MD
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ISHAM HEWGLEY, III, MD

Hospitalist Physician in KNOXVILLE, 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
47
Medicare Part D claims · 11 beneficiaries · Hospitalist Physician avg: 888
What the federal data reveals: ISHAM HEWGLEY, III, MD is a Hospitalist Physician ([object Object]) practicing in KNOXVILLE, Tennessee with a Medicare Part D prescribing footprint of 47 claims across 11 beneficiaries .

What stands out: ISHAM HEWGLEY, III, MD filed 47 Medicare Part D claims in 2023 across KNOXVILLE, Tennessee. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

ISHAM HEWGLEY, III, MD 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).

ISHAM HEWGLEY, III, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 01/03/2006

NPI 1215915921

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

47 95% vs specialty avg

2023 prescription claims

Specialty avg: 888

Specialty distribution in Tennessee

How Hospitalist Physician compares to other specialties among Tennessee providers

Tennessee providers

Hospitalist Physician share within Tennessee

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

Specialty board-certification context

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

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

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

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

ISHAM HEWGLEY, III, MD is a Hospitalist Physician provider practicing in KNOXVILLE, Tennessee, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1215915921. 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.

ISHAM HEWGLEY, III, MD appears in the CMS NPPES registry as a Hospitalist Physician provider holding MD credentials at 10820 PARKSIDE DR, KNOXVILLE, TN, 37934, with a listed phone of (865) 218-7972. NPI 1215915921 was issued on 01/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HEWGLEY, III 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 47 prescription claims written by this provider, covering 11 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.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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

10820 PARKSIDE DR
KNOXVILLE, TN 37934

Provider Details

NPI 1215915921
Specialty Hospitalist Physician
Credentials MD
Gender Male
NPI Issued 01/03/2006

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

47
Total Claims
$3K
Total Drug Cost
11
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
77
Total Day Supply
1,955
Generic Drug Cost
$523

Patient Demographics

Average Patient Age
75.3 years
Avg HCC Risk Score
1.54
Age Distribution
<65: 0, 65-74: N/A, 75-84: N/A, 85+: N/A

Hospitalist Physician Overview

How ISHAM HEWGLEY, III, MD fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

ISHAM HEWGLEY, III, MD's 47 claims are below the specialty average of 888.

Nearby Hospitalist Physician Providers in Tennessee

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

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

Frequently Asked Questions

What is ISHAM HEWGLEY, III, MD's specialty?
ISHAM HEWGLEY, III, MD specializes in Hospitalist Physician and practices in KNOXVILLE, Tennessee. Credentials: MD.
How much does ISHAM HEWGLEY, III, MD prescribe under Medicare Part D?
In 2023, ISHAM HEWGLEY, III, MD wrote 47 Medicare Part D claims totaling $3K in drug costs for 11 beneficiaries.
Where is ISHAM HEWGLEY, III, MD located?
ISHAM HEWGLEY, III, MD is located at 10820 PARKSIDE DR, KNOXVILLE, TN, 37934. Phone: (865) 218-7972.
What is ISHAM HEWGLEY, III, MD's NPI number?
ISHAM HEWGLEY, III, MD's National Provider Identifier (NPI) is 1215915921, issued on 01/03/2006.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
Does ISHAM HEWGLEY, III, MD accept Medicare?
ISHAM HEWGLEY, III, MD appears in CMS Medicare data with 47 Part D claims and 11 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ISHAM HEWGLEY, III, MD's credentials?
ISHAM HEWGLEY, III, MD's NPI is 1215915921 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