Alex Penn

  • Fairfield, CA
  • Interventional radiologist
NPI1972881159PAC ID8820385693
Medicare services, 2024
3,898
Medicare patients, 2024
2,872
Publications
8
MIPS score, 2024
91
Hospital affiliations
5
Practice address
1200 B Gale Wilson Blvd, Fairfield, CA 94533
Practice phone
Call (707) 646-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

NorthBay Medical Center

Hospital · Fairfield, California

See all 21 affiliations

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Alex Penn is an interventional radiologist in Fairfield, California

Alex Penn practices at NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare.

Alex Penn's NPI, 1972881159, was assigned on July 22, 2011. Alex Penn graduated from UCSF School of Medicine in 2011. Alex Penn holds California license A122596.

NPI and contact details
Medicare PAC ID
8820385693
NPI enumeration date
July 22, 2011
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(707) 646-5000
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
41
Medical school graduation
2011

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Alex Penn practices at NorthBay Medical Center in Fairfield, California

Alex Penn's primary practice is NorthBay Medical Center, at 1200 B Gale Wilson Blvd, Fairfield, CA 94533 in Solano County. The practice phone is (707) 646-5000.

Source: Dmand AI Affiliation Data

Alex Penn is affiliated with 12 sites of care and 9 medical groups

Alex Penn's primary practice is NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare. Alex Penn is also affiliated with Santa Clara Valley Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Alex Penn to 3 more hospitals, 8 medical groups and 7 group practices and clinics, each named with a free account.

See all 21 affiliations for Alex Penn

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Alex Penn's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Alex Penn practices, 12 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
NorthBay Medical CenterAvailable with a free account
+11 more sites and 8 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Alex Penn is one of 559 interventional radiologists in California

Vascular and interventional radiology is Alex Penn's primary specialty in the NPI Registry, under taxonomy code 2085R0204X. Alex Penn is board certified in interventional radiology and diagnostic radiology by the American Board of Radiology. Dmand AI has Alex Penn's licenses on file in 3 states: California, Oregon and Hawaii.

Specialties and state licenses

  • Vascular and interventional radiology, CaliforniaPrimaryLicense A122596 · 2012 to 2026 · taxonomy 2085R0204X
  • Oregon licenseSince 2016
  • Hawaii license2024 to 2026

Interventional radiologists near Alex Penn

Counts of interventional radiologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Alex Penn billed Medicare for 3,898 services in 2024

CMS data shows 3,898 Medicare services from Alex Penn across 56 procedure codes in 2024, for 2,872 Medicare patients. Medicare paid $152,729 for them.

Medicare services, 20243,898
Medicare patients2,872
Paid by Medicare$152,729
Procedure codes56

Alex Penn's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Imaging
2023: 3,7552024: 3,34111%
Tests and treatments
2023: 2962024: 34316%
Surgery
2023: 2482024: 21414%

Where Alex Penn's Medicare services took place, 2024

  • In an office43211%
  • In a facility3,46689%

Alex Penn compared with the California median for interventional radiologists, 2024

  • Alex Penn
  • California median
Medicare services
3,898vs 8384.7 times
Medicare patients
2,872vs 4346.6 times

Medians across 511 interventional radiologists in California with Dmand AI profiles that report each measure.

Alex Penn's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Alex Penn

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Alex Penn treated 2,872 Medicare patients in 2024, average age 75

CMS counts 2,872 Medicare patients who saw Alex Penn in 2024. The largest group is 75 to 84, with 1,005 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 40% are also on Medicaid. Their average risk score is 2.15, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Alex Penn's median patient age at 60, with 54% women.

Medicare patients, 20242,872
Average age75
Average risk score2.15
Also on Medicaid40%

Alex Penn's Medicare patients by age, 2024

Alex Penn's Medicare patients by sex, 2024

  • Women1,67058%
  • Men1,20242%

Chronic conditions among Alex Penn's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis50%
  4. Diabetes43%
  5. Chronic kidney disease40%
  6. Ischemic heart disease36%
  7. Mood disorders34%
  8. Heart failure33%

Share of Medicare patients with each condition. A patient can have several.

Alex Penn's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 60

Patient panel by sex, all payers

  • Women54%
  • Men45%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Alex Penn scored 91 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Alex Penn for performance year 2024, reported as part of a group. Alex Penn accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Alex Penn's MIPS scores, performance year 2024

  • 91of 100Final score
  • 84.1of 100Quality
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Alex Penn has 8 publications on record

Dmand AI links 8 papers to Alex Penn, published from 2011 to 2016. 2011 was the busiest year, with 2. The most frequent topics are Tomography, X-Ray Computed. Alex Penn's most frequent co-authors are Benjamin Boun-Ming Chou, MD, Wilbur Wang, MD and Zhen Jane Wang, MD.

Papers8
Years published2011 to 2016

Alex Penn's papers by year, 2011 to 2016

Topics Alex Penn writes about most

  • Tomography, X-Ray Computed

Alex Penn's most frequent co-authors

Recent publications by Alex Penn

See all 8 publications and co-authors

See who Alex Penn researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Alex Penn works with, so you can find a warm path to the right interventional radiologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Alex Penn received $2,062 in industry payments from 2017 to 2025

CMS Open Payments shows 35 general payments to Alex Penn from 13 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 80% of the total. Boston Scientific Corporation paid the most, $1,194.

General payments to Alex Penn by program year, 2017 to 2025

General payments to Alex Penn by kind, 2017 to 2025

$2.1Kin total
  • Food and beverage$1,63980%
  • Travel and lodging$42220%

Companies that paid Alex Penn the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Alex Penn

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Alex Penn graduated from UCSF School of Medicine

Alex Penn graduated from UCSF School of Medicine in 2011.

  1. Medical schoolUCSF School of Medicine
  2. Board certified in interventional radiology and diagnostic radiologyAmerican Board of Radiology

Source: Dmand AI Professional Profile Data

Alex Penn accepts plans from 7 insurance carriers

Alex Penn is in network with 7 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.

  • United Healthcare
  • Aspirus Health Plan
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • Elevance
  • HCSC
  • Molina

Plan types Alex Penn accepts, by number of carriers

  1. Medicare3
  2. PPO3
  3. POS2
  4. EPO1
  5. HMO1

Source: Dmand AI Insurance Network Data

Sources for Alex Penn's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Alex Penn

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Alex Penn's NPI number?

Alex Penn's NPI number is 1972881159. It was assigned on July 22, 2011, and it is active in the NPI Registry.

What does Alex Penn specialize in?

Alex Penn is an interventional radiologist in Fairfield, California. The primary specialty in the NPI Registry is Vascular & Interventional Radiology Physician (taxonomy code 2085R0204X).

Where does Alex Penn practice?

Alex Penn practices at 1200 B Gale Wilson Blvd, Fairfield, CA 94533. Alex Penn's primary practice is NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare. Dmand AI also links Alex Penn to 3 hospitals, 8 medical groups and 7 group practices and clinics.

What is Alex Penn's office phone number?

The practice phone on file for Alex Penn is (707) 646-5000.

What is Alex Penn's medical license number?

Alex Penn holds California license A122596, one of the licenses on file in 3 states.

Which states has Alex Penn been licensed in?

Dmand AI has state licenses on file for Alex Penn in California (2012 to 2026), Oregon (since 2016) and Hawaii (2024 to 2026).

Which hospitals is Alex Penn affiliated with?

Alex Penn practices at NorthBay Medical Center in Fairfield, California. Alex Penn is also affiliated with Santa Clara Valley Medical Center. Dmand AI links Alex Penn to 3 more hospitals.

What medical group is Alex Penn part of?

Alex Penn is linked to The Permanente Medical Group, Inc. Dmand AI links Alex Penn to 8 more medical groups.

Does Alex Penn accept Medicare?

Yes. CMS data shows Alex Penn billed Medicare for 3,898 services in 2024, and Alex Penn accepts Medicare assignment.

What is Alex Penn's MIPS score?

Alex Penn's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.

Show 9 more questionsShow fewer questions

How many Medicare patients does Alex Penn see?

CMS counts 2,872 Medicare patients who saw Alex Penn in 2024, with an average age of 75.

Is Alex Penn board certified?

Yes. Alex Penn is board certified in interventional radiology and diagnostic radiology by the American Board of Radiology.

What services does Alex Penn bill to Medicare?

In 2024, Alex Penn's most billed Medicare services were diagnostic imaging (71045), diagnostic imaging (70450) and diagnostic imaging (74177).

Where did Alex Penn go to medical school?

Alex Penn graduated from UCSF School of Medicine in 2011.

Has Alex Penn received payments from drug or device companies?

CMS Open Payments shows $2,062 in general payments to Alex Penn from 13 companies from 2017 to 2025. The largest total came from Boston Scientific Corporation.

How long has Alex Penn been practicing?

Alex Penn graduated from medical school in 2011, 15 years ago.

Does Alex Penn do research?

Dmand AI links 8 publications to Alex Penn, published from 2011 to 2016.

Who does Alex Penn publish with?

Alex Penn's most frequent co-authors are Benjamin Boun-Ming Chou, MD (2 shared papers), Wilbur Wang, MD (2 shared papers) and Zhen Jane Wang, MD (2 shared papers).

What insurance does Alex Penn accept?

Alex Penn is in network with 7 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.

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