2026 NPPES data Hematology & Oncology Physician NPI 1982047981 MD
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POUYAN CHANGIZZADEH, MD

Hematology & Oncology Physician in STORRS, Connecticut. 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
1K
Medicare Part D claims · 248 beneficiaries · Hematology & Oncology Physician avg: 847
MIPS score
100/100
▲ 17 pts above national avg 83.1 · [object Object]
Industry payments
$3.0K
151 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: POUYAN CHANGIZZADEH, MD is a Hematology & Oncology Physician ([object Object]) practicing in STORRS, Connecticut with a Medicare Part D prescribing footprint of 1K claims across 248 beneficiaries . Their CMS MIPS Final Score of 100/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $3.0K across 151 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: POUYAN CHANGIZZADEH, MD reported a CMS MIPS final score of 100 out of 100, above the 83.1 national average, and filed 1,456 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

POUYAN CHANGIZZADEH, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

POUYAN CHANGIZZADEH, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 04/10/2013

NPI 1982047981

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,215 US NPIs in this specialty

Medicare Part D claims

1,456 72% vs specialty avg

2023 prescription claims

Specialty avg: 847

MIPS final score

100/100 16.900000000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Connecticut

How Hematology & Oncology Physician compares to other specialties among Connecticut providers

Connecticut providers

Hematology & Oncology Physician share within Connecticut

1. Hematology & Oncology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hematology & Oncology Physician share within Connecticut

Medicare quality performance — MIPS

POUYAN CHANGIZZADEH, MD's 2023 MIPS final score plotted against the Hematology & Oncology Physician national average

High performer (top quartile)
MIPS Final Score
100/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Hematology & Oncology Physician) — 100/100 vs national avg 83.1

0%100%National avg83%99%
MIPS final score (Hematology & Oncology Physician) — 100/100 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).

POUYAN CHANGIZZADEH, MD is a Hematology & Oncology Physician provider practicing in STORRS, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1982047981. 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.

POUYAN CHANGIZZADEH, MD appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding MD credentials at 1244 STORRS RD, STORRS, CT, 06268, with a listed phone of (860) 487-9684. NPI 1982047981 was issued on 04/10/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHANGIZZADEH 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 1,456 prescription claims written by this provider, covering 248 Medicare beneficiaries and totaling roughly $4.0 million in drug spend, with an opioid prescribing rate of 5.6%. 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 100/100 for the 2023 performance year (Quality 83.0603, Cost 96.5141), compared with the national average of 83.1.

Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,215 enrolled providers across 54 states and an average of 847 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

1244 STORRS RD
STORRS, CT 06268

Provider Details

NPI 1982047981
Specialty Hematology & Oncology Physician
Credentials MD
Gender Male
NPI Issued 04/10/2013

CMS Quality Score (MIPS)

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

100
Final Score
Avg: 83.1
83.0603
Quality
96.5141
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where POUYAN CHANGIZZADEH, 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.

EASTERN CONNECTICUT HEMATOLOGY AND ONCOLOGY ASSOCIATES PC
NORWICH, CT
HARTFORD HEALTHCARE MEDICAL GROUP SPECIALISTS PLLC
STORRS, CT

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 POUYAN CHANGIZZADEH, MD. Source: openpaymentsdata.cms.gov.

Total received

$3.0K

Largest payer

Janssen Biotech, Inc.

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.

1,456
Total Claims
$4.0M
Total Drug Cost
248
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,165
Total Day Supply
59,452
Generic Drug Cost
$670K
Opioid Claims
81 (5.6% rate)
Antibiotic Claims
44

Patient Demographics

Average Patient Age
72.8 years
Avg HCC Risk Score
2.42
Gender Split
46% female / 54% male
Age Distribution
<65: 31, 65-74: 119, 75-84: 80, 85+: 18

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Xarelto
Rivaroxaban
112
Abiraterone Acetate
107
Prednisone
97
Gabapentin
76
Eliquis
Apixaban
55
Oxycodone Hcl
48
Prochlorperazine Maleate
48
Omeprazole
44
Levothyroxine Sodium
41
Lidocaine-Prilocaine
Lidocaine/Prilocaine
39

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

Hematology & Oncology Physician Overview

How POUYAN CHANGIZZADEH, MD fits within the Hematology & Oncology Physician landscape nationally.

11,215
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider

POUYAN CHANGIZZADEH, MD's 1,456 claims are above the specialty average of 847.

Nearby Hematology & Oncology Physician Providers in Connecticut

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

Compare Hematology & Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is POUYAN CHANGIZZADEH, MD's specialty?
POUYAN CHANGIZZADEH, MD specializes in Hematology & Oncology Physician and practices in STORRS, Connecticut. Credentials: MD.
How much does POUYAN CHANGIZZADEH, MD prescribe under Medicare Part D?
In 2023, POUYAN CHANGIZZADEH, MD wrote 1,456 Medicare Part D claims totaling $4.0M in drug costs for 248 beneficiaries.
What is POUYAN CHANGIZZADEH, MD's Medicare quality score?
POUYAN CHANGIZZADEH, MD has a CMS MIPS Final Score of 100/100 (Quality: 83.0603, Cost: 96.5141). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is POUYAN CHANGIZZADEH, MD located?
POUYAN CHANGIZZADEH, MD is located at 1244 STORRS RD, STORRS, CT, 06268. Phone: (860) 487-9684.
What is POUYAN CHANGIZZADEH, MD's NPI number?
POUYAN CHANGIZZADEH, MD's National Provider Identifier (NPI) is 1982047981, issued on 04/10/2013.
Does POUYAN CHANGIZZADEH, MD prescribe opioids?
Yes, POUYAN CHANGIZZADEH, MD had 81 opioid claims in 2023 with an opioid prescribing rate of 5.6%.
How many Hematology & Oncology Physician providers are there in the US?
There are 11,215 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does POUYAN CHANGIZZADEH, MD prescribe most often?
Based on 2023 Medicare Part D data, POUYAN CHANGIZZADEH, MD's most frequently prescribed drugs include Xarelto, Abiraterone Acetate, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does POUYAN CHANGIZZADEH, MD accept Medicare?
POUYAN CHANGIZZADEH, MD appears in CMS Medicare data with 1,456 Part D claims and 248 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify POUYAN CHANGIZZADEH, MD's credentials?
POUYAN CHANGIZZADEH, MD's NPI is 1982047981 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