2026 NPPES data Hematology & Oncology Physician NPI 1295719904 MD
Verify on CMS →

JENNY FOX, MD

Hematology & Oncology Physician in BOULDER, Colorado. 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
681
Medicare Part D claims · 154 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
84.8074/100
▲ 2 pts above national avg 83.1 · [object Object]

What the federal data shows

JENNY FOX, MD reported a CMS MIPS final score of 84.8074/100 — above the 83.1 national average — and filed 681 Medicare Part D claims in 2023.

84.8074/100
MIPS score · +2 vs avg
681
Part D claims, 2023
84%
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.

JENNY FOX, MD's MIPS score vs every scored U.S. clinician

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

85 45th percentile higher than 45% 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)

JENNY FOX, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — 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 JENNY FOX, MD?

Near national average

NPI registry status

Active

Issued 12/06/2005

NPI 1295719904

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,215 US NPIs in this specialty

Medicare Part D claims

681 20% vs specialty avg

2023 prescription claims

Specialty avg: 847

MIPS final score

84.8074/100 1.707400000000007% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Colorado

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

Colorado providers

Hematology & Oncology Physician share within Colorado

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

Medicare quality performance — MIPS

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

Near national average
MIPS Final Score
84.8074/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Hematology & Oncology Physician) — 84.8074/100 vs national avg 83.1

0%100%National avg83%84.8%
MIPS final score (Hematology & Oncology Physician) — 84.8074/100 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).

JENNY FOX, MD appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding MD credentials at 4715 ARAPHOE AVENUE, BOULDER, CO, 80303, with a listed phone of (303) 385-2000. NPI 1295719904 was issued on 12/06/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FOX 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 681 prescription claims written by this provider, covering 154 Medicare beneficiaries and totaling roughly $1.5 million in drug spend, split 16% brand-name and 84% generic by claim count, with an opioid prescribing rate of 5.1%. 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 84.8074/100 for the 2023 performance year (Quality 66.4524), 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

4715 ARAPHOE AVENUE
BOULDER, CO 80303

Provider Details

NPI 1295719904
Specialty Hematology & Oncology Physician
Credentials MD
Gender Female
NPI Issued 12/06/2005

CMS Quality Score (MIPS)

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

84.8074
Final Score
Avg: 83.1
66.4524
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Brand vs generic prescribing mix · Typical

JENNY FOX, MD — brand share 16.0%
Specialty average (est.)

16% brand-name claims vs 84% generic, on 681 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.

681
Total Claims
$1.5M
Total Drug Cost
154
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,090
Total Day Supply
31,141
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$1.2M
Generic Drug Cost
$308K
Opioid Claims
35 (5.1% rate)

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
1.44
Gender Split
87% female / 13% male

Top Prescribed Drugs (Medicare Part D)

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

What JENNY FOX, 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
198
Letrozole
67
Exemestane
38
Tamoxifen Citrate
38
Gabapentin
29
Revlimid
Lenalidomide
26
Lenalidomide
21
Dexamethasone
19
Prednisone
19
Oxycodone Hcl
17

* 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 JENNY FOX, 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

JENNY FOX, MD's 681 claims are below the specialty average of 847.

Nearby Hematology & Oncology Physician Providers in Colorado

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

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

Frequently Asked Questions

What is JENNY FOX, MD's specialty?
JENNY FOX, MD specializes in Hematology & Oncology Physician and practices in BOULDER, Colorado. Credentials: MD.
How much does JENNY FOX, MD prescribe under Medicare Part D?
In 2023, JENNY FOX, MD wrote 681 Medicare Part D claims totaling $1.5M in drug costs for 154 beneficiaries.
What is JENNY FOX, MD's Medicare quality score?
JENNY FOX, MD has a CMS MIPS Final Score of 84.8074/100 (Quality: 66.4524). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JENNY FOX, MD located?
JENNY FOX, MD is located at 4715 ARAPHOE AVENUE, BOULDER, CO, 80303. Phone: (303) 385-2000.
What is JENNY FOX, MD's NPI number?
JENNY FOX, MD's National Provider Identifier (NPI) is 1295719904, issued on 12/06/2005.
Does JENNY FOX, MD prescribe more brand-name or generic drugs?
JENNY FOX, MD's prescribing is 16% brand-name and 84% generic drugs by claim count, with $1.2M in brand drug costs.
Does JENNY FOX, MD prescribe opioids?
Yes, JENNY FOX, MD had 35 opioid claims in 2023 with an opioid prescribing rate of 5.1%.
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 JENNY FOX, MD prescribe most often?
Based on 2023 Medicare Part D data, JENNY FOX, MD's most frequently prescribed drugs include Anastrozole, Letrozole, Exemestane. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JENNY FOX, MD accept Medicare?
JENNY FOX, MD appears in CMS Medicare data with 681 Part D claims and 154 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JENNY FOX, MD's credentials?
JENNY FOX, MD's NPI is 1295719904 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