2026 NPPES data Medical Oncology Physician NPI 1982685533 MD
Verify on CMS →

RATHIPRIYA MAHENDRAN, MD

Medical Oncology Physician in MARION, Indiana. 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
581
Medicare Part D claims · 120 beneficiaries · Medical Oncology Physician avg: 689
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
83.7167/100
▲ 1 pts above national avg 83.1 · [object Object]
Industry payments
$959.5
45 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

RATHIPRIYA MAHENDRAN, MD reported a CMS MIPS final score of 83.7167/100 — above the 83.1 national average — and filed 581 Medicare Part D claims in 2023.

83.7167/100
MIPS score · +1 vs avg
581
Part D claims, 2023
92%
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.

RATHIPRIYA MAHENDRAN, MD's MIPS score vs every scored U.S. clinician

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

84 42nd percentile higher than 42% 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%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 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)

RATHIPRIYA MAHENDRAN, MD 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 RATHIPRIYA MAHENDRAN, MD?

Near national average

NPI registry status

Active

Issued 11/10/2005

NPI 1982685533

Primary specialty

Medical Oncology Physician

Niche

3,792 US NPIs in this specialty

Medicare Part D claims

581 16% vs specialty avg

2023 prescription claims

Specialty avg: 689

MIPS final score

83.7167/100 0.6167000000000087% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Indiana

How Medical Oncology Physician compares to other specialties among Indiana providers

Indiana providers

Medical Oncology Physician share within Indiana

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

Medicare quality performance — MIPS

RATHIPRIYA MAHENDRAN, MD's 2023 MIPS final score plotted against the Medical Oncology Physician national average

Near national average
MIPS Final Score
83.7167/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Medical Oncology Physician) — 83.7167/100 vs national avg 83.1

0%100%National avg83%83.7%
MIPS final score (Medical Oncology Physician) — 83.7167/100 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).

RATHIPRIYA MAHENDRAN, MD appears in the CMS NPPES registry as a Medical Oncology Physician provider holding MD credentials at 831 THEATRE DRIVE, MARION, IN, 46952, with a listed phone of (765) 660-7800. NPI 1982685533 was issued on 11/10/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAHENDRAN 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 581 prescription claims written by this provider, covering 120 Medicare beneficiaries and totaling roughly $328K in drug spend, split 8% brand-name and 92% generic by claim count, with an opioid prescribing rate of 6.7%. 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 83.7167/100 for the 2023 performance year (Quality 69.9489), 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

831 THEATRE DRIVE
MARION, IN 46952

Provider Details

NPI 1982685533
Specialty Medical Oncology Physician
Credentials MD
Gender Female
NPI Issued 11/10/2005

CMS Quality Score (MIPS)

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

83.7167
Final Score
Avg: 83.1
69.9489
Quality
95
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where RATHIPRIYA MAHENDRAN, 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.

MARION GENERAL HOSPITAL
★★★☆☆ 3/5
MARION, IN
Acute Care Hospitals
CMS CCN: 150011

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 RATHIPRIYA MAHENDRAN, MD. Source: openpaymentsdata.cms.gov.

Total received

$960

Largest payer

E.R. Squibb & Sons, L.L.C.

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 · Generic-heavy

RATHIPRIYA MAHENDRAN, MD — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 581 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.

581
Total Claims
$328K
Total Drug Cost
120
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
965
Total Day Supply
25,112
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$279K
Generic Drug Cost
$49K
Opioid Claims
39 (6.7% rate)
Antibiotic Claims
21

Patient Demographics

Average Patient Age
73.5 years
Avg HCC Risk Score
1.88
Gender Split
84% female / 16% male
Age Distribution
<65: 11, 65-74: 56, 75-84: 41, 85+: 12

Top Prescribed Drugs (Medicare Part D)

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

What RATHIPRIYA MAHENDRAN, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Anastrozole
138
Tamoxifen Citrate
46
Ondansetron Odt
Ondansetron
32
Prednisone
28
Oxybutynin Chloride
26
Eliquis
Apixaban
22
Methylprednisolone
21
Prochlorperazine Maleate
21
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
18
Letrozole
17

* 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 RATHIPRIYA MAHENDRAN, MD 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

RATHIPRIYA MAHENDRAN, MD's 581 claims are below the specialty average of 689.

Nearby Medical Oncology Physician Providers in Indiana

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

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

Frequently Asked Questions

What is RATHIPRIYA MAHENDRAN, MD's specialty?
RATHIPRIYA MAHENDRAN, MD specializes in Medical Oncology Physician and practices in MARION, Indiana. Credentials: MD.
How much does RATHIPRIYA MAHENDRAN, MD prescribe under Medicare Part D?
In 2023, RATHIPRIYA MAHENDRAN, MD wrote 581 Medicare Part D claims totaling $328K in drug costs for 120 beneficiaries.
What is RATHIPRIYA MAHENDRAN, MD's Medicare quality score?
RATHIPRIYA MAHENDRAN, MD has a CMS MIPS Final Score of 83.7167/100 (Quality: 69.9489). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is RATHIPRIYA MAHENDRAN, MD located?
RATHIPRIYA MAHENDRAN, MD is located at 831 THEATRE DRIVE, MARION, IN, 46952. Phone: (765) 660-7800.
What is RATHIPRIYA MAHENDRAN, MD's NPI number?
RATHIPRIYA MAHENDRAN, MD's National Provider Identifier (NPI) is 1982685533, issued on 11/10/2005.
Does RATHIPRIYA MAHENDRAN, MD prescribe more brand-name or generic drugs?
RATHIPRIYA MAHENDRAN, MD's prescribing is 8% brand-name and 92% generic drugs by claim count, with $279K in brand drug costs.
Does RATHIPRIYA MAHENDRAN, MD prescribe opioids?
Yes, RATHIPRIYA MAHENDRAN, MD had 39 opioid claims in 2023 with an opioid prescribing rate of 6.7%.
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 RATHIPRIYA MAHENDRAN, MD prescribe most often?
Based on 2023 Medicare Part D data, RATHIPRIYA MAHENDRAN, MD's most frequently prescribed drugs include Anastrozole, Tamoxifen Citrate, Ondansetron Odt. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RATHIPRIYA MAHENDRAN, MD accept Medicare?
RATHIPRIYA MAHENDRAN, MD appears in CMS Medicare data with 581 Part D claims and 120 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RATHIPRIYA MAHENDRAN, MD's credentials?
RATHIPRIYA MAHENDRAN, MD's NPI is 1982685533 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.
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