WILLIAM KLAUS MAI MD
NPI 1427632116
Internal Medicine - Cardiovascular Disease in Jacksonville, FL

Active since May 08, 2021PECOS EnrolledAccepts Medicare Assignment
4500 SAN PABLO RD S, JACKSONVILLE, FL 32224(904) 953-2000 Get Directions Write a Review

NPPES record last updated: June 19, 2024. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 19, 2024, Jun 21, 2021, Jun 20, 2021 and 1 more (4 updates tracked since 2021).

About William Klaus Mai Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM KLAUS MAI MD (NPI 1427632116) is an individual cardiovascular disease provider in Jacksonville, Florida, licensed in Florida (ME159160) and active in the NPI registry since May 2021. He is enrolled in Medicare PECOS, is affiliated with Mayo Clinic, and is a graduate of George Washington University School Of Medicine (2021).

NPPES Registry Identity

NPI1427632116
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameWILLIAM KLAUS MAICredential: MD
Location Address4500 SAN PABLO RD SJacksonville, FL 32224-1865
Mailing Address4500 San Pablo Rd SJacksonville, FL 32224-1865 · (904) 953-2000
Sole ProprietorNo
Medical School CMSGeorge Washington University School Of MedicineGraduated 2021
Enumeration DateMay 8, 2021
Last NPPES UpdateJune 19, 20244 updates tracked since enumeration
NPPES CertifiedJune 19, 2024
NPI 1427632116 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License Licensed in FL · ME159160
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
4500 SAN PABLO RD S, Jacksonville, FL 32224

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

William Klaus Mai Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7517368533
PECOS Enrollment IDI20240627001420
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mayo Clinic

Acute Care Hospitals · Jacksonville, FL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number100151
Location4500 San Pablo RdJacksonville, FL 32224 · Duval County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 32224 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$130.04 typical visit price
range $56.00 – $171.84
Typical copayment $32.51 (range $14.00 – $42.96)
Most-billed visit code 99204
Established Patient
$70.04 typical visit price
range $17.57 – $139.16
Typical copayment $17.51 (range $4.39 – $34.79)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Physician Assistant
4500 SAN PABLO RD S
JACKSONVILLE, FL 32224
Internal Medicine (Gastroenterology)
4500 SAN PABLO RD S
JACKSONVILLE, FL 32224
Orthopaedic Surgery
4500 SAN PABLO RD S
JACKSONVILLE, FL 32224
Internal Medicine
4500 SAN PABLO RD S
JACKSONVILLE, FL 32224
Hospitalist
4500 SAN PABLO RD S
JACKSONVILLE, FL 32224
Nurse Anesthetist, Certified Registered
4500 SAN PABLO RD S
JACKSONVILLE, FL 32224
Nurse Anesthetist, Certified Registered
4500 SAN PABLO RD S
JACKSONVILLE, FL 32224
Physician Assistant
4500 SAN PABLO RD S
JACKSONVILLE, FL 32224

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Mai's NPI number?

The NPI number for William Mai is 1427632116. It was assigned to this individual provider in the NPPES registry on May 8, 2021.

Where is William Mai located?

William Mai practices at 4500 San Pablo Rd S, Jacksonville, FL 32224. The listed phone number is (904) 953-2000.

What is William Mai's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is William Mai enrolled in Medicare?

Yes. William Mai is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does William Mai accept?

Health plans from Florida Blue (BlueCross BlueShield FL) list William Mai as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is William Mai affiliated with any hospitals?

According to CMS data, William Mai is affiliated with Mayo Clinic.

When was this NPI record last updated?

The NPPES record for William Mai was last updated on June 19, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.