Ayarpi Nikolopoulos, PA-C

  • Los Angeles, CA
  • Physician assistant
NPI1841332376PAC ID8729406632
Medicare services, 2024
19
Medicare patients, 2024
20
Part D claims, 2024
142
Hospital affiliations
1
Industry payments
$374
Practice address
1500 San Pablo Street, Los Angeles, CA 90033
Practice phone
Call (323) 442-8656
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Keck Hospital of USC

Hospital · Los Angeles, California

See all 5 affiliations

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Ayarpi Nikolopoulos is a physician assistant in Los Angeles, California

Ayarpi Nikolopoulos practices at Keck Hospital of USC in Los Angeles, California, part of University of Southern California.

Ayarpi Nikolopoulos' NPI, 1841332376, was assigned on February 12, 2007. Ayarpi Nikolopoulos graduated from University of Southern California Keck School of Medicine in 2006. Ayarpi Nikolopoulos holds California license 18540.

NPI and contact details
Medicare PAC ID
8729406632
NPI enumeration date
February 12, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(323) 442-8656
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Female
Estimated age
46
Medical school graduation
2006

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

Ayarpi Nikolopoulos practices at Keck Hospital of USC in Los Angeles, California

Ayarpi Nikolopoulos' 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 USC
    1500 San Pablo Street, Los Angeles, CA 90033 · Los Angeles CountyPhone(323) 442-8656

Source: Dmand AI Affiliation Data

Ayarpi Nikolopoulos is affiliated with 4 sites of care and 1 medical group

Ayarpi Nikolopoulos' primary practice is Keck Hospital of USC in Los Angeles, California, part of University of Southern California. The medical group on file is USC Care Medical Group. Dmand AI also links Ayarpi Nikolopoulos to 1 more group practice or clinic, 1 other site and 1 urgent care center, each named with a free account.

See all 5 affiliations for Ayarpi Nikolopoulos

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

Dmand AI tracks the EHR system at Ayarpi Nikolopoulos' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Ayarpi Nikolopoulos practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Keck Hospital of USCAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Ayarpi Nikolopoulos is one of 11,482 physician assistants in California

Physician assistant is Ayarpi Nikolopoulos' primary specialty in the NPI Registry, under taxonomy code 363A00000X. Ayarpi Nikolopoulos is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Ayarpi Nikolopoulos is licensed in California.

Specialties and state licenses

  • Physician assistant, CaliforniaPrimaryLicense 18540 · taxonomy 363A00000X

Clinical focus

Dmand AI lists fluid and electrolyte imbalances, neuropathy and osteoporosis among the conditions Ayarpi Nikolopoulos treats.

Physician assistants near Ayarpi Nikolopoulos

Counts of physician assistants 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

Ayarpi Nikolopoulos billed Medicare for 19 services in 2024

CMS data shows 19 Medicare services from Ayarpi Nikolopoulos across 1 procedure code in 2024, all of them office visits, for 20 Medicare patients. Medicare paid $1,928 for them. Every service was in an office.

Medicare services, 202419
Medicare patients20
Paid by Medicare$1,928
Procedure codes1

Ayarpi Nikolopoulos compared with the California median for physician assistants, 2024

  • Ayarpi Nikolopoulos
  • California median
Medicare services
19vs 20491% below
Medicare patients
20vs 10581% below
Part D claims
30vs 24388% below

Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.

Ayarpi Nikolopoulos' 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 Ayarpi Nikolopoulos

Need commercial claims for Ayarpi Nikolopoulos?

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

Ayarpi Nikolopoulos treated 20 Medicare patients in 2024, average age 69

CMS counts 20 Medicare patients who saw Ayarpi Nikolopoulos in 2024. 75% of them have cancer, and 70% have high blood pressure. Their average risk score is 2.88, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Ayarpi Nikolopoulos' median patient age at 61, with 76% women.

Medicare patients, 202420
Average age69
Average risk score2.88

Chronic conditions among Ayarpi Nikolopoulos' Medicare patients, 2024

  1. Cancer75%
  2. High blood pressure70%
  3. High cholesterol70%
  4. Arthritis65%
  5. Depression55%
  6. Mood disorders55%

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

Ayarpi Nikolopoulos' patients across all payers

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

Patient panel by age, all payers

Median age 61

Patient panel by sex, all payers

  • Women76%
  • Men24%

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

Ayarpi Nikolopoulos wrote 142 Medicare Part D claims in 2024

In 2024, Ayarpi Nikolopoulos wrote 142 Medicare Part D claims for 33 patients. 83% of them were for generic drugs. CMS names the drug for 30 of them, across 2 drugs with 11 or more claims each, at $679 in total drug cost.

Part D claims, 2024142
Drugs named by CMS2
Total drug cost$679
Part D patients33

Ayarpi Nikolopoulos' Part D claims by kind of drug, 2024

  • Generic118 claims83%
  • Brand-name24 claims17%

Ayarpi Nikolopoulos' most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Ayarpi Nikolopoulos' Part D claims, 2024

  • Opioids10%14 of 142 claims
  • Antibiotics9%13 of 142 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

See all prescribing by Ayarpi Nikolopoulos

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Ayarpi Nikolopoulos takes part in Medicare

Ayarpi Nikolopoulos accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

For MedTech and pharma teams

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Ayarpi Nikolopoulos received $374 in industry payments from 2024 to 2025

CMS Open Payments shows 6 general payments to Ayarpi Nikolopoulos from 5 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $125.

General payments to Ayarpi Nikolopoulos by program year, 2024 to 2025

Companies that paid Ayarpi Nikolopoulos the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to Ayarpi Nikolopoulos

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

Ayarpi Nikolopoulos graduated from University of Southern California Keck School of Medicine

Ayarpi Nikolopoulos graduated from University of Southern California Keck School of Medicine in 2006. Ayarpi Nikolopoulos is a member of AAPA.

  1. Medical schoolUniversity of Southern California Keck School of Medicine
  2. Board certified in certified physician assistantNational Commission on Certification of Physician Assistants (NCCPA)

Source: Dmand AI Professional Profile Data

Sources for Ayarpi Nikolopoulos'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)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile 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 Ayarpi Nikolopoulos

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

What is Ayarpi Nikolopoulos' NPI number?

Ayarpi Nikolopoulos' NPI number is 1841332376. It was assigned on February 12, 2007, and it is active in the NPI Registry.

What does Ayarpi Nikolopoulos specialize in?

Ayarpi Nikolopoulos is a physician assistant in Los Angeles, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Ayarpi Nikolopoulos practice?

Ayarpi Nikolopoulos practices at 1500 San Pablo Street, Los Angeles, CA 90033. Ayarpi Nikolopoulos' primary practice is Keck Hospital of USC in Los Angeles, California, part of University of Southern California. Dmand AI also links Ayarpi Nikolopoulos to 1 group practice or clinic, 1 other site and 1 urgent care center.

What is Ayarpi Nikolopoulos' office phone number?

The practice phone on file for Ayarpi Nikolopoulos is (323) 442-8656.

What is Ayarpi Nikolopoulos' medical license number?

Ayarpi Nikolopoulos holds California license 18540.

Which hospitals is Ayarpi Nikolopoulos affiliated with?

Ayarpi Nikolopoulos practices at Keck Hospital of USC in Los Angeles, California.

What medical group is Ayarpi Nikolopoulos part of?

Ayarpi Nikolopoulos is linked to USC Care Medical Group.

Does Ayarpi Nikolopoulos accept Medicare?

Yes. CMS data shows Ayarpi Nikolopoulos billed Medicare for 19 services in 2024, and Ayarpi Nikolopoulos accepts Medicare assignment.

How many Medicare patients does Ayarpi Nikolopoulos see?

CMS counts 20 Medicare patients who saw Ayarpi Nikolopoulos in 2024, with an average age of 69.

Is Ayarpi Nikolopoulos board certified?

Yes. Ayarpi Nikolopoulos is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).

Show 5 more questionsShow fewer questions

What services does Ayarpi Nikolopoulos bill to Medicare?

In 2024, Ayarpi Nikolopoulos' most billed Medicare services were office visit, established patient (99215).

Where did Ayarpi Nikolopoulos go to medical school?

Ayarpi Nikolopoulos graduated from University of Southern California Keck School of Medicine in 2006.

What drugs does Ayarpi Nikolopoulos prescribe most?

In 2024 Medicare Part D data, Ayarpi Nikolopoulos' most prescribed drugs by claims were Ondansetron HCl and Gabapentin.

Has Ayarpi Nikolopoulos received payments from drug or device companies?

CMS Open Payments shows $374 in general payments to Ayarpi Nikolopoulos from 5 companies from 2024 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.

How long has Ayarpi Nikolopoulos been practicing?

Ayarpi Nikolopoulos graduated from medical school in 2006, 20 years ago.

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