Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Alexander B Fein , PA-C

Physician Assistant โ€ข Jacksonville, FL

Active NPI 1457926909 Individual Practitioner Male Practitioner Telehealth (some services)
Practice location in NPPES

4500 San Pablo Rd S
Jacksonville, FL 322241865

Call 9049532000 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

4500 San Pablo Rd S

Jacksonville, FL 322241865

Telephone 9049532000
Organization at the Same NPPES Address or Phone
Mayo Clinic Jacksonville Facility NPI 1790772317

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

NPPES lists 1 additional practice-address record in Saint Johns, FL. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 2 distinct group names: Mayo Clinic Jacksonville; St Vincent'S Full Service Urgent Care, Llc. 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

2021

Medicare patients

287 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 โ€“ by Provider, 2024.

Medicare-allowed amount

About $32,389 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 โ€“ by Provider and Service, 2024.

Paid by Medicare

About $22,770 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 โ€“ by Provider and Service, 2024.

30-day fills

404 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

$4,246 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 โ€“ by Provider and Drug, 2024.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $25.46 in 2025

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2025.

Guide: How to read an Open Payments record

Years since graduation

5 years (graduated 2021)

CMS Doctors and Clinicians data list 2021 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

2021

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.

May accept Medicare assignment

CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.

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, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

Telehealth (some services)

Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.

What this does not show: Telehealth (some services)

It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.

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)

Alexander Fein 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 Alexander Fein 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 Jacksonville and Florida

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Close to the middle for clinicians listed under Physician Assistant in Jacksonville, FL (2024, 432 clinicians with data). Median for this group: 317. Middle half: 110 to 886.

More Medicare Part B services than 60% of clinicians listed under Physician Assistant in Florida (2024, 4,397 clinicians with data). Median for this group: 252. Middle half: 82 to 807.

Medicare-allowed amount

Close to the middle for clinicians listed under Physician Assistant in Jacksonville, FL (2024, 432 clinicians with data). Median for this group: $25,236. Middle half: $8,783 to $61,231.

A higher Medicare-allowed amount than 60% of clinicians listed under Physician Assistant in Florida (2024, 4,397 clinicians with data). Median for this group: $19,984. Middle half: $7,371 to $51,670.

Paid by Medicare

Close to the middle for clinicians listed under Physician Assistant in Jacksonville, FL (2024, 432 clinicians with data). Median for this group: $18,850. Middle half: $6,720 to $45,820.

A higher Medicare payment amount than 60% of clinicians listed under Physician Assistant in Florida (2024, 4,397 clinicians with data). Median for this group: $14,814. Middle half: $5,414 to $38,190.

Medicare Part D prescriptions

More Part D prescriptions than 60% of clinicians listed under Physician Assistant in Jacksonville, FL (2024, 407 clinicians with data). Median for this group: 208. Middle half: 60 to 691.

Close to the middle for clinicians listed under Physician Assistant in Florida (2024, 4,894 clinicians with data). Median for this group: 270. Middle half: 78 to 825.

Part D drug cost

Close to the middle for clinicians listed under Physician Assistant in Jacksonville, FL (2024, 407 clinicians with data). Median for this group: $6,463. Middle half: $624 to $68,077.

Close to the middle for clinicians listed under Physician Assistant in Florida (2024, 4,894 clinicians with data). Median for this group: $5,225. Middle half: $703 to $70,250.

842 active clinicians are listed under Physician Assistant with a practice address in Jacksonville, FL (10,260 in Florida).

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

Telehealth indicator in Jacksonville

20.5% of these 842 clinicians have the CMS telehealth indicator.

59.1% of these 842 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 ยท 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 ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): fewer than 11 records totaling $25.46.

Manufacturer Payment Nature Product Type Amount ($)
Daiichi Sankyo Inc.
Food and Beverage
In-kind items and services
โ€” General $25.46

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 ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2020โ€“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 โ€“ by Provider and Service data, 2021โ€“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
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
218 191 $220.46 $74.50
87428 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza
56 56 $93.00 $68.88
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
45 45 $327.00 $91.52
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
44 44 $323.00 $106.01
81003 Automated urinalysis test
31 29 $9.00 $2.20
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
19 19 $497.00 $131.97
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)
18 17 $50.00 $16.20
87804 Detection test by immunoassay with direct visual observation for influenza virus
12 12 $50.00 $16.22
87811 Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19)
11 11 $124.00 $40.55

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 ยท Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Doxycycline Hyclate Doxycycline Hyclate 83 575 $562.43 81
Prednisone Prednisone 68 512 $199.48 64
Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav 39 286 $305.01 35
Fluticasone Propionate Fluticasone Propionate 28 1,094 $284.47 28
Ipratropium Bromide Ipratropium Bromide 28 591 $543.70 28
Mupirocin Mupirocin 24 415 $135.00 24
Azithromycin Azithromycin 21 101 $61.91 20
Paxlovid Nirmatrelvir/Ritonavir 21 130 $1,429.40 21
Cephalexin Cephalexin 17 114 $98.66 17
Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim 17 114 $78.15 15
Methylprednisolone Methylprednisolone 16 94 $119.80 15
Albuterol Sulfate Hfa Albuterol Sulfate 15 251 $291.61 15
Nitrofurantoin Mono-Macro Nitrofurantoin Monohyd/M-Cryst 14 81 $136.83 14

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: 2024-12-18
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES FL PA9114618

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: Florida Department of Health Medical Quality Assurance.
Look Up on State Board Site

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

I20210909003333

Enrollment State Jurisdiction

FL

PECOS Control ID

0244636611

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

St Vincent's Full Service Urgent Care, Llc

7963 Normandy Blvd, Jacksonville, FL 322216640

Phone: 9047860440

Mayo Clinic Jacksonville

4500 San Pablo Rd S, Jacksonville, FL 322241865

Phone: 9049532000

St Vincent's Full Service Urgent Care, Llc

10503 San Jose Blvd, Jacksonville, FL 322576295

Phone: 9044506700

Secondary Practice Locations

2001 County Road 210 W

Saint Johns, FL 322592063

Phone: 9044508401

Clinicians Sharing This Practice Address or Phone

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

37 listed
Dr. Zaid Abdel Rahman , MD

Internal Medicine - Hematology

NPI 1003299330

Doctor of Medicine (M.D.)

Dr. Mohammed Ahmed , MD

Radiology - Diagnostic Radiology

NPI 1013335876

Doctor of Medicine (M.D.)

Dr. Violeta Alvarez Retamales , MD

Internal Medicine - Nephrology

NPI 1013401090

Doctor of Medicine (M.D.)

Ryan Asencios , PA-C

Physician Assistant

NPI 1003484437

Physician Assistant (Certified)

Melinda Barber , ARNP

Nurse Practitioner

NPI 1013358613

Advanced Registered Nurse Practitioner

NPI 1013273986

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

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

12 Historical Events
๐Ÿ“
Updated Practice Location December 18, 2024

Registered at 4500 SAN PABLO RD S, JACKSONVILLE, FL 322241865 (Tel: 9049532000)

๐Ÿ“
Updated Business Mailing Address December 18, 2024

Registered at 4500 SAN PABLO RD S, JACKSONVILLE, FL 322241865 (Tel: 9049532000)

๐Ÿ‘ค
Provider Name / Credentials Updated December 18, 2024

Recorded as ALEXANDER FEIN, PA-C

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) December 18, 2024

Physician Assistant (license number reported to NPPES: FL PA9114618)

๐Ÿ“
Updated Business Mailing Address November 14, 2021

Registered at 2001 COUNTY ROAD 210 W, SAINT JOHNS, FL 322592063 (Tel: 3528716737)

๐Ÿ“
Updated Practice Location August 25, 2021

Registered at 2001 COUNTY ROAD 210 W, SAINT JOHNS, FL 322592063 (Tel: 9044508401)

โœ…
NPI Profile Active May 26, 2021

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) May 26, 2021

Registered at 1404 MOON HARBOR CT, ST AUGUSTINE, FL 320925099 (Tel: 3528716737)

๐Ÿ“
Business Mailing Address (Initial Record) May 26, 2021

Registered at 1404 MOON HARBOR CT, ST AUGUSTINE, FL 320925099 (Tel: 3528716737)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) May 26, 2021

Recorded as ALEXANDER FEIN

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) May 26, 2021

Physician Assistant

๐ŸŸข
Initial NPI Registration & Enumeration May 26, 2021

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1457926909
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 26, 2021
Last Update: December 18, 2024
Sole Proprietor: No

Other Physician Assistants in Jacksonville

All Physician Assistants in Jacksonville

Mailing Address

4500 San Pablo Rd S

Jacksonville, FL 322241865

Phone: 9049532000

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.