NPI registry status
Active
2026 NPPES data Hematology & Oncology Physician NPI 1396712089 MD PHD
Verify on CMS → Karen Anderson, MD PHD
Hematology & Oncology Physician in Scottsdale, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 11,232 in Hematology & Oncology 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
112
Medicare Part D claims · 47 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
78.6/100
▼ 5 pts below national avg 83.5 · Above neutral
Industry payments
$184.09
3 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Karen Anderson, MD PHD reported a CMS MIPS final score of 78.6/100 - below the 83.5 national average - and filed 112 Medicare Part D claims in 2023.
- 78.6/100
- MIPS score · -5 vs avg
- 112
- Part D claims, 2023
- 89%
- 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.
Federal trust snapshot
What official records show about Karen Anderson, MD PHD
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1396712089), first enumerated 03/02/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 112 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 78.6/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$184.09 in reported industry payments (3 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1396712089 · Hematology & Oncology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-BELOW · RX-LIGHT · BOOK-THIN · PHOTO-FINISH
- NPI-10 1396712089
- ENUM-LEGACY 2006
- TAX-MID 11K Hematology &
- MIPS-BELOW 78.6/100
- RX-LIGHT 112
- BOOK-THIN 230 in Arizona
- PHOTO-FINISH Charles Gaulin · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Marwan Mounayar …
Marwan Mounayar
78.5 MIPS pts
- Anderson · this …
Anderson · this provider
78.6 MIPS pts
- Charles Gaulin ·…
Charles Gaulin
78.6 MIPS pts
- Binbin Zheng · n…
Binbin Zheng
78.6 MIPS pts
- James Orcutt · h…
James Orcutt
78.7 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Karen Anderson, MD PHD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
79 ≥ 23rd percentile 23% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Karen Anderson, MD PHD sits
This provider among hematology & oncology physician peers
Across the 4,019 hematology & oncology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Karen Anderson, MD PHD writes more Part D claims than 10% of them and scores higher on MIPS quality than 22% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one hematology & oncology physician peer from a representative sample of 60; the gold marker is Karen Anderson, MD PHD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Karen Anderson, MD PHD 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 Karen Anderson, MD PHD?
Near national averagePrimary specialty
Hematology & Oncology Physician
Medicare Part D claims
112 87% vs specialty avg
MIPS final score
78.6/100 4.9 pts vs avg
Specialty distribution in Arizona
How Hematology & Oncology Physician compares to other specialties among Arizona providers
Medicare quality performance, MIPS
Karen Anderson, MD PHD's 2023 MIPS final score plotted against the Hematology & Oncology Physician national average
- MIPS Final Score
- 78.6/100
- vs 83.5 national avg · 2023 performance year
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).
Practice Address
Provider Details
| NPI | 1396712089 |
|---|---|
| Specialty | Hematology & Oncology Physician |
| Credentials | MD PHD |
| Gender | Female |
| NPI Issued | 03/02/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
78.5864
Final Score
Measured-score avg: 83.5
69.056
Quality
59.5653
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Karen Anderson, MD PHD 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.
Mayo Clinic Arizona
Scottsdale, AZ
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 Karen Anderson, MD PHD. Source: openpaymentsdata.cms.gov.
Total received
$184
Largest payer
Gilead Sciences, 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.
Brand vs generic prescribing mix · Typical
Karen Anderson, MD PHD - brand share 11.0%
Hematology & Oncology Physician average
11% brand-name claims vs 89% generic, on 112 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.
112
Total Claims
$162K
Total Drug Cost
47
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 220
- Total Day Supply
- 5,889
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $160K
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 73.6 years
- Avg HCC Risk Score
- 1.49
- Gender Split
- 100% female / 0% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Letrozole | 54 |
| Prochlorperazine Maleate | 16 |
* 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 Karen Anderson, MD PHD fits within the Hematology & Oncology Physician landscape nationally.
11,232
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider
Karen Anderson, MD PHD's 112 claims are below the specialty average of 847.
Nationwide Hematology & Oncology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Anderson, both outside Arizona so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (78.6 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Hematology & Oncology Physician Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Anderson.
One of 230 Hematology & Oncology Physician providers enrolled in Arizona, 5 are shown here.
Dr. Ahmed Abdelaziz
M.D.
Tucson, AZ
Oluseyi Abidoye
Phoenix, AZ
Dr. Roberta Adams
M.D.
Scottsdale, AZ
Dr. Clarence Adoo
M.D.
Peoria, AZ
Dr. Yusuf Ahmad
M.D.
Oro Valley, AZ
Compare Hematology & Oncology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Karen Anderson, MD PHD's specialty? ▼
Karen Anderson, MD PHD specializes in Hematology & Oncology Physician and practices in Scottsdale, Arizona. Credentials: MD PHD.
How much does Karen Anderson, MD PHD prescribe under Medicare Part D? ▼
In 2023, Karen Anderson, MD PHD wrote 112 Medicare Part D claims totaling $162K in drug costs for 47 beneficiaries.
What is Karen Anderson, MD PHD's Medicare quality score? ▼
Karen Anderson, MD PHD has a CMS MIPS Final Score of 78.6/100 (Quality: 69.1, Cost: 59.6). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Karen Anderson, MD PHD located? ▼
Karen Anderson, MD PHD is located at 13400 E SHEA BLVD, Scottsdale, AZ, 85259. Phone: (480) 301-8000.
What is Karen Anderson, MD PHD's NPI number? ▼
Karen Anderson, MD PHD's National Provider Identifier (NPI) is 1396712089, issued on 03/02/2006.
Does Karen Anderson, MD PHD prescribe more brand-name or generic drugs? ▼
Karen Anderson, MD PHD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $160K in brand drug costs.
How many Hematology & Oncology Physician providers are there in the US? ▼
There are 11,232 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 Karen Anderson, MD PHD prescribe most often? ▼
Based on 2023 Medicare Part D data, Karen Anderson, MD PHD's most frequently prescribed drugs include Letrozole, Prochlorperazine Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Karen Anderson, MD PHD accept Medicare? ▼
Karen Anderson, MD PHD appears in CMS Medicare data with 112 Part D claims and 47 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Karen Anderson, MD PHD's credentials? ▼
Karen Anderson, MD PHD's NPI is 1396712089 with credentials MD PHD. 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.