Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Larissa Nicole Anthony , PA-C

Physician Assistant • Phoenix, AZ

Active NPI 1093099855 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

2550 W Union Hills Dr Ste 390
Phoenix, AZ 850275197

Call 6024434068 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

2550 W Union Hills Dr Ste 390

Phoenix, AZ 850275197

Telephone 6024434068
Fax 6234348310
Organization at the Same NPPES Address or Phone
Pulmonary Associates, Pa Facility NPI 1497854269

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Pulmonary Associates Pa. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2011

Medicare patients

675 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $174,254 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Paid by Medicare

About $133,091 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

30-day fills

8,164 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$2,636,946 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $10,280.29 across 239 records.

By nature of payment (3 largest of 4)

  • Food and Beverage: $5,943.51 across 225 records.
  • Consulting Fee: $2,532.00 across 1 record.
  • Travel and Lodging: $1,424.81 across 9 records.

Reporting-company totals (3 largest of 29)

  • Sanofi and Genzyme US Companies: $4,207.62 across 28 records.
  • Inspire Medical Systems, Inc.: $1,285.58 across 15 records.
  • AstraZeneca Pharmaceuticals LP: $781.40 across 24 records.

Research and ownership records are not included in these totals; they are in the table below.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

15 years (graduated 2011)

CMS Doctors and Clinicians data list 2011 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2011

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Larissa Anthony has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Larissa Anthony as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Phoenix and Arizona

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 85% of clinicians listed under Physician Assistant in Phoenix, AZ (2024, 398 clinicians with data). Median for this group: 267. Middle half: 65 to 771.

More Medicare Part B services than 85% of clinicians listed under Physician Assistant in Arizona (2024, 1,724 clinicians with data). Median for this group: 275. Middle half: 92 to 797.

Medicare-allowed amount

A higher Medicare-allowed amount than 95% of clinicians listed under Physician Assistant in Phoenix, AZ (2024, 398 clinicians with data). Median for this group: $18,501. Middle half: $5,717 to $46,180.

A higher Medicare-allowed amount than 95% of clinicians listed under Physician Assistant in Arizona (2024, 1,724 clinicians with data). Median for this group: $21,104. Middle half: $7,577 to $48,477.

Paid by Medicare

A higher Medicare payment amount than 95% of clinicians listed under Physician Assistant in Phoenix, AZ (2024, 398 clinicians with data). Median for this group: $13,484. Middle half: $4,002 to $34,872.

A higher Medicare payment amount than 95% of clinicians listed under Physician Assistant in Arizona (2024, 1,724 clinicians with data). Median for this group: $15,425. Middle half: $5,570 to $36,295.

Medicare Part D prescriptions

More Part D prescriptions than 95% of clinicians listed under Physician Assistant in Phoenix, AZ (2024, 457 clinicians with data). Median for this group: 219. Middle half: 74 to 695.

More Part D prescriptions than 95% of clinicians listed under Physician Assistant in Arizona (2024, 1,917 clinicians with data). Median for this group: 260. Middle half: 86 to 858.

Part D drug cost

A higher Part D drug cost than 95% of clinicians listed under Physician Assistant in Phoenix, AZ (2024, 457 clinicians with data). Median for this group: $3,869. Middle half: $706 to $71,034.

A higher Part D drug cost than 95% of clinicians listed under Physician Assistant in Arizona (2024, 1,917 clinicians with data). Median for this group: $4,301. Middle half: $765 to $83,048.

926 active clinicians are listed under Physician Assistant with a practice address in Phoenix, AZ (3,673 in Arizona).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Phoenix

14.4% of these 926 clinicians have the CMS telehealth indicator.

56.2% of these 926 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): 250 records totaling $11,905.48.

Manufacturer Payment Nature Product Type Amount ($)
Sanofi and Genzyme US Companies
Consulting Fee
Cash or cash equivalent
— General $2,532.00
GlaxoSmithKline, LLC.
General
In-kind items and services
— Research $723.24
Sanofi and Genzyme US Companies
Travel and Lodging
In-kind items and services
— General $351.43
Inspire Medical Systems, Inc.
Travel and Lodging
Cash or cash equivalent
INSPIRE General $300.00
Sanofi and Genzyme US Companies
Travel and Lodging
In-kind items and services
— General $286.35
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
AIRSUPRA General $282.27
Sanofi and Genzyme US Companies
Food and Beverage
In-kind items and services
— General $266.00
Inspire Medical Systems, Inc.
Travel and Lodging
In-kind items and services
INSPIRE General $249.82
GlaxoSmithKline, LLC.
General
In-kind items and services
— Research $237.63
GlaxoSmithKline, LLC.
General
In-kind items and services
— Research $161.64
Inspire Medical Systems, Inc.
Food and Beverage
In-kind items and services
INSPIRE General $146.37
Inspire Medical Systems, Inc.
Food and Beverage
In-kind items and services
INSPIRE General $130.32
Inspire Medical Systems, Inc.
Food and Beverage
In-kind items and services
INSPIRE General $128.32
GlaxoSmithKline, LLC.
General
In-kind items and services
— Research $119.99
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
TEZSPIRE General $117.81
GlaxoSmithKline, LLC.
General
In-kind items and services
— Research $113.85
Sanofi and Genzyme US Companies
Food and Beverage
In-kind items and services
DUPIXENT General $113.35
GlaxoSmithKline, LLC.
General
In-kind items and services
— Research $103.36
Sanofi and Genzyme US Companies
Education
In-kind items and services
DUPIXENT General $99.99
Janssen Pharmaceuticals, Inc
Education
In-kind items and services
OPSUMIT General $99.99
JAZZ PHARMACEUTICALS INC.
Education
In-kind items and services
XYWAV General $90.00
JAZZ PHARMACEUTICALS INC.
Education
In-kind items and services
XYWAV General $89.99
Avadel CNS Pharmaceuticals, LLC
Food and Beverage
In-kind items and services
LUMRYZ General $85.93
United Therapeutics Corporation
Food and Beverage
In-kind items and services
— General $80.62
Sanofi and Genzyme US Companies
Food and Beverage
In-kind items and services
DUPIXENT General $76.55

(top 25 shown)

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2018–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2019–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
536 340 $179.07 $147.33
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
493 405 $128.00 $103.89
94726 Test to determine lung volumes using sensors
146 145 $54.09 $45.26
94729 Test to examine how well the lungs exchange gases
145 144 $58.06 $45.78
94060 Test to measure expiratory airflow and volume changes before and after medication administration
129 129 $46.00 $31.51
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
76 76 $216.00 $180.55
32555 Aspiration of fluid from chest cavity using imaging guidance
32 13 $313.00 $254.13
76604 Ultrasound scan of chest
32 16 $56.00 $46.48
94010 Test to measure expiratory airflow and volume
29 29 $27.00 $22.27
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
17 17 $165.00 $136.74
94618 Test for exercise-induced lung stress
16 16 $34.00 $27.80

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Albuterol Sulfate Hfa Albuterol Sulfate 1,045 30,278 $30,140.83 364
Trelegy Ellipta Fluticasone/Umeclidin/Vilanter 960 40,800 $861,546.34 217
Montelukast Sodium Montelukast Sodium 428 30,060 $4,256.91 132
Prednisone Prednisone 402 7,015 $1,461.15 236
Breztri Aerosphere Budesonide/Glycopyr/Formoterol 229 8,430 $174,549.49 63
Breo Ellipta Fluticasone/Vilanterol 170 8,190 $104,086.03 43
Fluticasone-Salmeterol Fluticasone Propion/Salmeterol 153 7,980 $37,308.69 58
Doxycycline Monohydrate Doxycycline Monohydrate 148 1,591 $2,824.84 118
Azelastine Hcl Azelastine Hcl 140 8,556 $7,632.20 77
Fluticasone Propionate Fluticasone Propionate 136 8,240 $2,454.06 59
Wixela Inhub Fluticasone Propion/Salmeterol 114 4,890 $16,529.15 34
Fluconazole Fluconazole 110 4,213 $5,582.53 32
Anoro Ellipta Umeclidinium Brm/Vilanterol Tr 102 3,480 $51,390.73 29
Symbicort Budesonide/Formoterol Fumarate 97 4,863 $36,893.18 28
Azithromycin Azithromycin 87 2,558 $882.41 52
Arnuity Ellipta Fluticasone Furoate 87 3,660 $31,006.29 27
Stiolto Respimat Tiotropium Br/Olodaterol Hcl 81 3,210 $50,419.20 17
Dupixent Pen Dupilumab 81 2,436 $360,568.55 11
Ipratropium Bromide Ipratropium Bromide 71 2,878 $2,003.28 29
Zolpidem Tartrate Zolpidem Tartrate 67 3,301 $668.82 18
Advair Hfa Fluticasone Propion/Salmeterol 66 2,580 $32,256.25 19
Levalbuterol Tartrate Hfa Levalbuterol Tartrate 52 1,902 $4,504.76 29
Spiriva Respimat Tiotropium Bromide 49 1,980 $34,861.70 13
Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav 45 451 $706.02 38
Ventolin Hfa Albuterol Sulfate 44 1,217 $3,376.54 19

(top 25 shown)

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-03-17
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES AZ 4993

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Arizona Medical Board.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
339667 (AZ)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20150803000147

Enrollment State Jurisdiction

AZ

PECOS Control ID

2769628445

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Pulmonary Associates Pa

2550 W Union Hills Dr, Phoenix, AZ 850275197

Phone: 6024434068

Pulmonary Associates Pa

3811 E Bell Rd, Phoenix, AZ 850322158

Phone: 6023401689

Pulmonary Associates Pa

5151 E Broadway Rd, Mesa, AZ 852061346

Phone: 4802907000

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

5 listed
Dr. Stephen Anthony , MD

Internal Medicine - Pulmonary Disease

NPI 1760434419

Doctor of Medicine (M.D.)

Stacey Gourdoux , ANP-C

Nurse Practitioner - Adult Health

NPI 1477584118

Adult Nurse Practitioner (Certified)

Dr. Brian Porvin , DO

Internal Medicine - Pulmonary Disease

NPI 1861529174

Doctor of Osteopathic Medicine (D.O.)

Dr. Tejas Shah , MD

Internal Medicine - Pulmonary Disease

NPI 1396131090

Doctor of Medicine (M.D.)

Nicole Slane , FNP

Nurse Practitioner - Family

NPI 1922828870

Family Nurse Practitioner

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

12 Historical Events
🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) October 07, 2025

Physician Assistant (license number reported to NPPES: AZ 4993)

📍
Updated Practice Location September 19, 2023

Registered at 2550 W UNION HILLS DR STE 390, PHOENIX, AZ 850275197 (Tel: 6024434068)

📍
Updated Practice Location August 10, 2021

Registered at 3811 E BELL RD STE 107, PHOENIX, AZ 850322158 (Tel: 6023401689)

📍
Updated Practice Location December 11, 2020

Registered at 5750 W THUNDERBIRD RD STE E500, GLENDALE, AZ 853064669 (Tel: 6022981932)

📍
Updated Practice Location July 09, 2018

Registered at 10585 N TATUM BLVD, STE D130, PARADISE VALLEY, AZ 85253 (Tel: 6029977263)

📍
Updated Business Mailing Address July 09, 2018

Registered at 5151 E BROADWAY RD STE 107, MESA, AZ 852061346 (Tel: 6022584951)

âś…
NPI Profile Active February 28, 2014

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) February 28, 2014

Registered at 10585 N TATUM BLVD, STE D130, PARADISE VALLEY, AZ 852531073 (Tel: 6029977263)

📍
Business Mailing Address (Initial Record) February 28, 2014

Registered at 1112 E MCDOWELL RD, PHOENIX, AZ 850062611 (Tel: 6022584951)

👤
Provider Name / Credentials (Initial Record) February 28, 2014

Recorded as LARISSA ANTHONY, PA-C

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) February 28, 2014

Physician Assistant (license number reported to NPPES: AZ 4993)

🟢
Initial NPI Registration & Enumeration September 28, 2011

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1093099855
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: September 28, 2011
Last Update: March 17, 2026
Sole Proprietor: No

Other Physician Assistants in Phoenix

All Physician Assistants in Phoenix

Mailing Address

5151 E Broadway Rd Ste 107

Mesa, AZ 852061346

Phone: 4802907000

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.