2026 NPPES data Medical Oncology Physician NPI 1285823658 M.D.
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HARSHA VARDHANA, M.D.

Medical Oncology Physician in CHATTANOOGA, 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
2K
Medicare Part D claims · 350 beneficiaries · Medical Oncology Physician avg: 689
MIPS score
75/100
▼ 8 pts below national avg 83.1 · [object Object]
Industry payments
$433.11
17 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

HARSHA VARDHANA, M.D. reported a CMS MIPS final score of 75/100 — below the 83.1 national average — and filed 2,304 Medicare Part D claims in 2023.

75/100
MIPS score · -8 vs avg
2K
Part D claims, 2023
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.

HARSHA VARDHANA, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

75 15th percentile higher than 15% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

HARSHA VARDHANA, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — 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 HARSHA VARDHANA, M.D.?

Below national average

NPI registry status

Active

Issued 10/22/2007

NPI 1285823658

Primary specialty

Medical Oncology Physician

Niche

3,792 US NPIs in this specialty

Medicare Part D claims

2,304 234% vs specialty avg

2023 prescription claims

Specialty avg: 689

MIPS final score

75/100 8.099999999999994% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Tennessee

How Medical Oncology Physician compares to other specialties among Tennessee providers

Tennessee providers

Medical Oncology Physician share within Tennessee

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

Medicare quality performance — MIPS

HARSHA VARDHANA, M.D.'s 2023 MIPS final score plotted against the Medical Oncology Physician national average

Below national average
MIPS Final Score
75/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Medical Oncology Physician) — 75/100 vs national avg 83.1

0%100%National avg83%75%
MIPS final score (Medical Oncology Physician) — 75/100 vs national avg 83.1

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).

HARSHA VARDHANA, M.D. is a Medical Oncology Physician provider practicing in CHATTANOOGA, Tennessee, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1285823658. 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.

HARSHA VARDHANA, M.D. appears in the CMS NPPES registry as a Medical Oncology Physician provider holding M.D. credentials at 1032 MCCALLIE AVE STE 200, CHATTANOOGA, TN, 37403, with a listed phone of (423) 752-5004. NPI 1285823658 was issued on 10/22/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what VARDHANA 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 2,304 prescription claims written by this provider, covering 350 Medicare beneficiaries and totaling roughly $4.1 million in drug spend, with an opioid prescribing rate of 5.9%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 75/100 for the 2023 performance year, compared with the national average of 83.1.

Medical Oncology Physician is a narrow specialty nationwide, with 3,792 enrolled providers across 53 states and an average of 689 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

1032 MCCALLIE AVE STE 200
CHATTANOOGA, TN 37403

Provider Details

NPI 1285823658
Specialty Medical Oncology Physician
Credentials M.D.
Gender Male
NPI Issued 10/22/2007

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

75
Final Score
Avg: 83.1

Reporting: Group practice

Hospital and facility affiliations

Facilities where HARSHA VARDHANA, M.D. 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.

TENNESSEE ONCOLOGY PLLC
CHATTANOOGA, 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 HARSHA VARDHANA, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$433

Largest payer

Incyte Corporation

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.

Medicare Part D Prescribing Data

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

2,304
Total Claims
$4.1M
Total Drug Cost
350
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,988
Total Day Supply
79,741
Generic Drug Cost
$521K
Opioid Claims
136 (5.9% rate)
Antibiotic Claims
86

Patient Demographics

Average Patient Age
71.5 years
Avg HCC Risk Score
2.27
Gender Split
59% female / 41% male
Age Distribution
<65: 53, 65-74: 163, 75-84: 106, 85+: 28

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Prednisone
155
Abiraterone Acetate
147
Letrozole
134
Prochlorperazine Maleate
131
Potassium Chloride
83
Anastrozole
80
Dexamethasone
78
Ondansetron Odt
Ondansetron
75
Hydroxyurea
65
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
59

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Medical Oncology Physician Overview

How HARSHA VARDHANA, M.D. fits within the Medical Oncology Physician landscape nationally.

3,792
Medical Oncology Physician Providers in US
53
States with Medical Oncology Physician
689
Avg Claims per Provider

HARSHA VARDHANA, M.D.'s 2,304 claims are above the specialty average of 689.

Nearby Medical Oncology Physician Providers in Tennessee

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

Compare Medical Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is HARSHA VARDHANA, M.D.'s specialty?
HARSHA VARDHANA, M.D. specializes in Medical Oncology Physician and practices in CHATTANOOGA, Tennessee. Credentials: M.D..
How much does HARSHA VARDHANA, M.D. prescribe under Medicare Part D?
In 2023, HARSHA VARDHANA, M.D. wrote 2,304 Medicare Part D claims totaling $4.1M in drug costs for 350 beneficiaries.
What is HARSHA VARDHANA, M.D.'s Medicare quality score?
HARSHA VARDHANA, M.D. has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is HARSHA VARDHANA, M.D. located?
HARSHA VARDHANA, M.D. is located at 1032 MCCALLIE AVE STE 200, CHATTANOOGA, TN, 37403. Phone: (423) 752-5004.
What is HARSHA VARDHANA, M.D.'s NPI number?
HARSHA VARDHANA, M.D.'s National Provider Identifier (NPI) is 1285823658, issued on 10/22/2007.
Does HARSHA VARDHANA, M.D. prescribe opioids?
Yes, HARSHA VARDHANA, M.D. had 136 opioid claims in 2023 with an opioid prescribing rate of 5.9%.
How many Medical Oncology Physician providers are there in the US?
There are 3,792 Medical Oncology Physician providers across 53 states in the US. The average Medical Oncology Physician provider writes 689 Medicare Part D claims per year.
What drugs does HARSHA VARDHANA, M.D. prescribe most often?
Based on 2023 Medicare Part D data, HARSHA VARDHANA, M.D.'s most frequently prescribed drugs include Prednisone, Abiraterone Acetate, Letrozole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does HARSHA VARDHANA, M.D. accept Medicare?
HARSHA VARDHANA, M.D. appears in CMS Medicare data with 2,304 Part D claims and 350 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify HARSHA VARDHANA, M.D.'s credentials?
HARSHA VARDHANA, M.D.'s NPI is 1285823658 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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