NPI registry status
Active
2026 NPPES data Hematology (Internal Medicine) Physician NPI 1881602027 MD
Verify on CMS → Patricia Rizzo, MD
Hematology (Internal Medicine) Physician in Fairfax, Virginia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,436 in Hematology (Internal Medicine) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
738
Medicare Part D claims · 199 beneficiaries · Hematology (Internal Medicine) Physician avg: 693
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
81.3/100
▼ 2 pts below national avg 83.1 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Patricia Rizzo, MD reported a CMS MIPS final score of 81.3/100 - below the 83.1 national average - and filed 738 Medicare Part D claims in 2023.
- 81.3/100
- MIPS score · -2 vs avg
- 738
- Part D claims, 2023
- 88%
- 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.
Patricia Rizzo, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
81 36th percentile higher than 36% of 477,587 scored providers
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
Where Patricia Rizzo, MD sits
This provider among hematology (internal medicine) physician peers
Across the 570 hematology (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Patricia Rizzo, MD writes more Part D claims than 59% of them and scores higher on MIPS quality than 43% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one hematology (internal medicine) physician peer from a representative sample of 60; the gold marker is Patricia Rizzo, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Patricia Rizzo, 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 Patricia Rizzo, MD?
Near national averagePrimary specialty
Hematology (Internal Medicine) Physician
Medicare Part D claims
738 6% vs specialty avg
MIPS final score
81.3/100 1.8 pts vs avg
Specialty distribution in Virginia
How Hematology (Internal Medicine) Physician compares to other specialties among Virginia providers
Medicare quality performance, MIPS
Patricia Rizzo, MD's 2023 MIPS final score plotted against the Hematology (Internal Medicine) Physician national average
- MIPS Final Score
- 81.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Hematology (Internal Medicine) Physician) - 81.3/100 vs national avg 83.1
How MIPS and board certification work
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).
Patricia Rizzo, MD appears in the CMS NPPES registry as a Hematology (Internal Medicine) Physician provider holding MD credentials at 8081 INNOVATION PARK DR, Fairfax, VA, 22031, with a listed phone of (571) 472-4724. NPI 1881602027 was issued on 08/03/2006.
Medicare Part D records for calendar year 2023 show 738 prescription claims written by this provider, covering 199 Medicare beneficiaries and totaling roughly $742K in drug spend, split 12% brand-name and 88% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 81.3/100 for the 2023 performance year (Quality 70.8, Cost 66.8), compared with the national average of 83.1.
Hematology (Internal Medicine) Physician is a narrow specialty nationwide, with 1,436 enrolled providers across 50 states and an average of 693 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
Provider Details
| NPI | 1881602027 |
|---|---|
| Specialty | Hematology (Internal Medicine) Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 08/03/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
81.283
Final Score
Avg: 83.1
70.77
Quality
66.84
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Patricia Rizzo, 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.
Inova Health Care Services
Alexandria, VA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Typical
Patricia Rizzo, MD - brand share 12.0%
Hematology (Internal Medicine) Physician average
12% brand-name claims vs 88% generic, on 738 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.
738
Total Claims
$742K
Total Drug Cost
199
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,796
- Total Day Supply
- 52,640
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $695K
- Generic Drug Cost
- $46K
Patient Demographics
- Average Patient Age
- 74.1 years
- Avg HCC Risk Score
- 1.33
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Patricia Rizzo, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Letrozole
Letrozole
371 claims
- Exemestane 84
Exemestane
84 claims
- Anastrozole 55
Anastrozole
55 claims
- Tamoxifen Citrate 54
Tamoxifen Citrate
54 claims
- Lidocaine-Prilocaine 21
Lidocaine-Prilocaine
21 claims
- Ibrance 19
Ibrance
19 claims
- Eliquis 15
Eliquis
15 claims
- Jakafi 13
Jakafi
13 claims
| Drug | Claims |
|---|---|
| Letrozole | 371 |
| Exemestane | 84 |
| Anastrozole | 55 |
| Tamoxifen Citrate | 54 |
| Lidocaine-Prilocaine Lidocaine/Prilocaine | 21 |
| Ibrance Palbociclib | 19 |
| Eliquis Apixaban | 15 |
| Jakafi Ruxolitinib Phosphate | 13 |
| Raloxifene Hcl | 11 |
| Toremifene Citrate | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Hematology (Internal Medicine) Physician in VA →
All providers in Virginia →
Compare specialties →
Hematology (Internal Medicine) Physician Overview
How Patricia Rizzo, MD fits within the Hematology (Internal Medicine) Physician landscape nationally.
1,436
Hematology (Internal Medicine) Physician Providers in US
50
States with Hematology (Internal Medicine) Physician
693
Avg Claims per Provider
Patricia Rizzo, MD's 738 claims are above the specialty average of 693.
Nearby Hematology (Internal Medicine) Physician Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Rizzo.
Dr. Ivan Aksentijevich
M.D.
Alexandria, VA
Dr. Emily Ayers
MD
Charlottesville, VA
Dr. Christina Brzezniak
DO
Reston, VA
Dr. Igryl Cordero-Hernandez
M.D.
Manassas, VA
Dr. John Densmore
M.D.
Charlottesville, VA
Compare Hematology (Internal Medicine) Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Virginia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hematology (Internal Medicine) Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Patricia Rizzo, MD's specialty? ▼
Patricia Rizzo, MD specializes in Hematology (Internal Medicine) Physician and practices in Fairfax, Virginia. Credentials: MD.
How much does Patricia Rizzo, MD prescribe under Medicare Part D? ▼
In 2023, Patricia Rizzo, MD wrote 738 Medicare Part D claims totaling $742K in drug costs for 199 beneficiaries.
What is Patricia Rizzo, MD's Medicare quality score? ▼
Patricia Rizzo, MD has a CMS MIPS Final Score of 81.3/100 (Quality: 70.8, Cost: 66.8). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Patricia Rizzo, MD located? ▼
Patricia Rizzo, MD is located at 8081 INNOVATION PARK DR, Fairfax, VA, 22031. Phone: (571) 472-4724.
What is Patricia Rizzo, MD's NPI number? ▼
Patricia Rizzo, MD's National Provider Identifier (NPI) is 1881602027, issued on 08/03/2006.
Does Patricia Rizzo, MD prescribe more brand-name or generic drugs? ▼
Patricia Rizzo, MD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $695K in brand drug costs.
How many Hematology (Internal Medicine) Physician providers are there in the US? ▼
There are 1,436 Hematology (Internal Medicine) Physician providers across 50 states in the US. The average Hematology (Internal Medicine) Physician provider writes 693 Medicare Part D claims per year.
What drugs does Patricia Rizzo, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Patricia Rizzo, MD's most frequently prescribed drugs include Letrozole, Exemestane, Anastrozole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Patricia Rizzo, MD accept Medicare? ▼
Patricia Rizzo, MD appears in CMS Medicare data with 738 Part D claims and 199 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Patricia Rizzo, MD's credentials? ▼
Patricia Rizzo, MD's NPI is 1881602027 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.