Alyssa Pyun
- Medicare services, 2024
- 123
- Medicare patients, 2024
- 124
- Publications
- 1
- Hospital affiliations
- 2
- Industry payments
- $14,466
- Practice address
- 1500 San Pablo Street, Los Angeles, CA 90033
- Practice phone
- Call (323) 442-8656
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Alyssa Pyun's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Alyssa Pyun is a vascular surgeon in Los Angeles, California
Alyssa Pyun practices at Keck Hospital of USC in Los Angeles, California, part of University of Southern California.
Alyssa Pyun's NPI, 1215469945, was assigned on March 31, 2017. Alyssa Pyun graduated from University Of Cincinnati College Of Medicine in 2017. Alyssa Pyun holds California license A162887.
- NPI
- 1215469945NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4284961772
- NPI enumeration date
- March 31, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (323) 442-8656
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Alyssa Pyun practices at Keck Hospital of USC in Los Angeles, California
Alyssa Pyun's primary practice is Keck Hospital of USC, at 1500 San Pablo Street, Los Angeles, CA 90033 in Los Angeles County. The practice phone is (323) 442-8656.
- Keck Hospital of USC1500 San Pablo Street, Los Angeles, CA 90033 · Los Angeles CountyPhone(323) 442-8656
Source: Dmand AI Affiliation Data
Alyssa Pyun is affiliated with 5 sites of care and 1 medical group
Alyssa Pyun's primary practice is Keck Hospital of USC in Los Angeles, California, part of University of Southern California. Alyssa Pyun is also affiliated with Los Angeles General Medical Center. The medical group on file is USC Care Medical Group. Dmand AI also links Alyssa Pyun to 1 more group practice or clinic, 1 other site and 1 urgent care center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Alyssa Pyun's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Alyssa Pyun practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Keck Hospital of USC | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Alyssa Pyun is one of 532 vascular surgeons in California
Vascular surgery is Alyssa Pyun's primary specialty in the NPI Registry, under taxonomy code 2086S0129X. Alyssa Pyun is board certified in vascular surgery by the American Board of Surgery. Alyssa Pyun is licensed in California.
Specialties and state licenses
- Vascular surgery, CaliforniaPrimary
Vascular surgeons near Alyssa Pyun
Counts of vascular surgeons 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
Alyssa Pyun billed Medicare for 123 services in 2024
CMS data shows 123 Medicare services from Alyssa Pyun across 6 procedure codes in 2024, for 124 Medicare patients. Medicare paid $10,529 for them. Every service was in a facility, such as a hospital, rather than an office.
Alyssa Pyun's Medicare services by type, 2024
- Office and hospital visits88
- Surgery35
Alyssa Pyun compared with the California median for vascular surgeons, 2024
- Alyssa Pyun
- California median
- Medicare services
- 123vs 60980% below
- Medicare patients
- 124vs 27254% below
Medians across 499 vascular surgeons in California with Dmand AI profiles that report each measure.
Alyssa Pyun'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.
Need commercial claims for Alyssa Pyun?
Medicare shows one payer. Book a meeting to get commercial claims data for Alyssa Pyun and other vascular surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Alyssa Pyun treated 124 Medicare patients in 2024, average age 71
CMS counts 124 Medicare patients who saw Alyssa Pyun in 2024. The largest group is 65 to 74, with 54 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 55% are also on Medicaid. Their average risk score is 3.47, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Alyssa Pyun's median patient age at 69, with 38% women.
Alyssa Pyun's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Alyssa Pyun's Medicare patients by sex, 2024
- Women5141%
- Men7359%
Chronic conditions among Alyssa Pyun's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis64%
- Ischemic heart disease63%
- Diabetes57%
- Chronic kidney disease56%
- Heart failure52%
- Atrial fibrillation42%
Share of Medicare patients with each condition. A patient can have several.
Alyssa Pyun's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women38%
- Men62%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Alyssa Pyun ranks in the 49th percentile for spinal fusion in Medicare
Alyssa Pyun accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Alyssa Pyun as offering telehealth. CMS counts 37 procedures of spinal fusion by Alyssa Pyun, more than 49% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Alyssa Pyun ranks in Medicare procedure volume
- Spinal fusion
- 49th percentile37 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Leg revascularization (restoring blood flow): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Alyssa Pyun has 1 publication on record
Dmand AI links 1 paper to Alyssa Pyun in 2025. Alyssa Pyun's most frequent co-authors are Mahmoud W. Almadani, MD, Erin M. Moore, MD and Patrick E. Muck, MD.
Alyssa Pyun's most frequent co-authors
- Mahmoud W. Almadani, MD1 shared paper
- Erin M. Moore, MD1 shared paper
- Patrick E. Muck, MD1 shared paper
Recent publications by Alyssa Pyun
See who Alyssa Pyun researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Alyssa Pyun works with, so you can find a warm path to the right vascular surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Alyssa Pyun received $14,466 in industry payments from 2021 to 2025
CMS Open Payments shows 73 general payments to Alyssa Pyun from 11 drug and device companies from 2021 to 2025. Consulting fees make up the largest share, 39% of the total. Medtronic, Inc. paid the most, $8,278.
General payments to Alyssa Pyun by program year, 2021 to 2025
General payments to Alyssa Pyun by kind, 2021 to 2025
- Consulting fees$5,67039%
- Food and beverage$4,93534%
- Travel and lodging$3,35723%
- Education$5043%
Companies that paid Alyssa Pyun the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Alyssa Pyun graduated from University Of Cincinnati College Of Medicine
Alyssa Pyun graduated from University Of Cincinnati College Of Medicine in 2017.
- Medical school
- Board certified in vascular surgery
Source: Dmand AI Professional Profile Data
Alyssa Pyun accepts plans from 6 insurance carriers
Alyssa Pyun is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Alyssa Pyun accepts, by number of carriers
- Medicare6
- PPO5
- HMO2
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Alyssa Pyun's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Alyssa Pyun
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Alyssa Pyun's NPI number?
Alyssa Pyun's NPI number is 1215469945. It was assigned on March 31, 2017, and it is active in the NPI Registry.
What does Alyssa Pyun specialize in?
Alyssa Pyun is a vascular surgeon in Los Angeles, California. The primary specialty in the NPI Registry is Vascular Surgery Physician (taxonomy code 2086S0129X).
Where does Alyssa Pyun practice?
Alyssa Pyun practices at 1500 San Pablo Street, Los Angeles, CA 90033. Alyssa Pyun's primary practice is Keck Hospital of USC in Los Angeles, California, part of University of Southern California. Dmand AI also links Alyssa Pyun to 1 group practice or clinic, 1 other site and 1 urgent care center.
What is Alyssa Pyun's office phone number?
The practice phone on file for Alyssa Pyun is (323) 442-8656.
What is Alyssa Pyun's medical license number?
Alyssa Pyun holds California license A162887.
Which hospitals is Alyssa Pyun affiliated with?
Alyssa Pyun practices at Keck Hospital of USC in Los Angeles, California. Alyssa Pyun is also affiliated with Los Angeles General Medical Center.
What medical group is Alyssa Pyun part of?
Alyssa Pyun is linked to USC Care Medical Group.
Does Alyssa Pyun accept Medicare?
Yes. CMS data shows Alyssa Pyun billed Medicare for 123 services in 2024, and Alyssa Pyun accepts Medicare assignment.
Does Alyssa Pyun offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Alyssa Pyun as offering telehealth services.
How many Medicare patients does Alyssa Pyun see?
CMS counts 124 Medicare patients who saw Alyssa Pyun in 2024, with an average age of 71.
Show 8 more questionsShow fewer questions
Is Alyssa Pyun board certified?
Yes. Alyssa Pyun is board certified in vascular surgery by the American Board of Surgery.
What services does Alyssa Pyun bill to Medicare?
In 2024, Alyssa Pyun's most billed Medicare services were office visit, new patient (99204), office visit, established patient (99214) and surgery: heart and blood vessels (34713).
Where did Alyssa Pyun go to medical school?
Alyssa Pyun graduated from University Of Cincinnati College Of Medicine in 2017.
Has Alyssa Pyun received payments from drug or device companies?
CMS Open Payments shows $14,466 in general payments to Alyssa Pyun from 11 companies from 2021 to 2025. The largest total came from Medtronic, Inc.
How long has Alyssa Pyun been practicing?
Alyssa Pyun graduated from medical school in 2017, 9 years ago.
Does Alyssa Pyun do research?
Dmand AI links 1 publication to Alyssa Pyun.
Who does Alyssa Pyun publish with?
Alyssa Pyun's most frequent co-authors are Mahmoud W. Almadani, MD (1 shared paper), Erin M. Moore, MD (1 shared paper) and Patrick E. Muck, MD (1 shared paper).
What insurance does Alyssa Pyun accept?
Alyssa Pyun is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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