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DR. WILLIAM JEFFREY MASON MD
NPI 1467509349
Internal Medicine - Infectious Disease in Memphis, TN

Active since January 04, 2007PECOS EnrolledAccepts Medicare Assignment
1068 CRESTHAVEN RD, SUITE 250, MEMPHIS, TN 38119(901) 684-3490(901) 685-3499 Get Directions Write a Review

NPPES record last updated: July 5, 2011. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. William Jeffrey Mason Md NPPES

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

DR. WILLIAM JEFFREY MASON MD (NPI 1467509349) is an individual infectious disease provider in Memphis, Tennessee, licensed in Tennessee (MD0000041126) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with Williamson Medical Center, and is a graduate of University Of Arkansas College Of Medicine (2003).

NPPES Registry Identity

NPI1467509349
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameDR. WILLIAM JEFFREY MASONCredential: MD
Location Address1068 CRESTHAVEN RD, SUITE 250Memphis, TN 38119-0800
Mailing Address1068 Cresthaven Rd, Suite 250Memphis, TN 38119-0800 · (901) 684-3490 · Fax (901) 685-3499
Phone(901) 684-3490
Fax(901) 685-3499
Sole ProprietorNo
Medical School CMSUniversity Of Arkansas College Of MedicineGraduated 2003
Enumeration DateJanuary 4, 2007
Last NPPES UpdateJuly 5, 2011
✔ NPI 1467509349 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in TN · MD0000041126
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
1068 CRESTHAVEN RD, Memphis, TN 38119
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Magnolia Health and more.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

Dr. William Jeffrey Mason 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 ID9931250776
PECOS Enrollment IDI20090707000707
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.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
323 services89 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
86 services53 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
85 services85 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
34 services29 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
15 services15 patients

Hospital Affiliations CMS Care Compare 3

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

Williamson Medical Center

Acute Care Hospitals · Franklin, TN
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number440029
Location4321 Carothers ParkwayFranklin, TN 37067 · Williamson County
Emergency services Birthing friendly

Vanderbilt University Medical Center

Acute Care Hospitals · Nashville, TN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440039
Location1211 Medical Center DriveNashville, TN 37232 · Davidson County
Emergency services Birthing friendly

Ascension Saint Thomas Hospital

Acute Care Hospitals · Nashville, TN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440082
Location4220 Harding Rd, PO Box 380Nashville, TN 37205 · Davidson County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 38119 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
$121.80 typical visit price
range $52.64 – $160.89
Typical copayment $30.45 (range $13.16 – $40.22)
Most-billed visit code 99204
Established Patient
$93.60 typical visit price
range $16.72 – $131.41
Typical copayment $23.40 (range $4.18 – $32.85)
Most-billed visit code 99214
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.

CENTROSALUD PC
Specialist
1068 CRESTHAVEN RD, SUITE 300
MEMPHIS, TN 38119
Shelby County (901) 683-0024
PAULINA WILLIAMSON CRNA
Nurse Anesthetist, Certified Registered
1068 CRESTHAVEN RD, SUITE 150
MEMPHIS, TN 38119
Shelby County (901) 682-2872
JACQUELINE YVONNE DRAPER MD
Anesthesiology
1068 CRESTHAVEN RD, SUITE 150
MEMPHIS, TN 38119
Shelby County (901) 682-6828
DR. BROJO SARKAR MD
Anesthesiology
1068 CRESTHAVEN RD, SUITE 150
MEMPHIS, TN 38119
Shelby County (901) 682-6828
BRANDY D STRANGFELD CRNA
Nurse Anesthetist, Certified Registered
1068 CRESTHAVEN RD, SUITE 150
MEMPHIS, TN 38119
Shelby County (901) 682-6828
WILLIAM T. WEISS, PLLC
Internal Medicine
1068 CRESTHAVEN RD, SUITE 350
MEMPHIS, TN 38119
Shelby County (901) 761-5542
RANDOL B MACKEY CRNA
Nurse Anesthetist, Certified Registered
1068 CRESTHAVEN RD, SUITE 150
MEMPHIS, TN 38119
Shelby County (901) 682-2872
JEFFREY WILLIAMS MD
Anesthesiology
1068 CRESTHAVEN RD, SUITE 150
MEMPHIS, TN 38119
Shelby County (901) 682-6828

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 Mason's NPI number?

The NPI number for William Mason is 1467509349. It was assigned to this individual provider in the NPPES registry on January 4, 2007.

Where is William Mason located?

William Mason practices at 1068 Cresthaven Rd Suite 250, Memphis, TN 38119. The listed phone number is (901) 684-3490.

What is William Mason's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is William Mason enrolled in Medicare?

Yes. William Mason 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 Mason accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Magnolia Health, Ambetter of Alabama and Ambetter of North Carolina and 2 other insurers list William Mason 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 Mason affiliated with any hospitals?

According to CMS data, William Mason is affiliated with Williamson Medical Center, Vanderbilt University Medical Center and Ascension Saint Thomas Hospital.

When was this NPI record last updated?

The NPPES record for William Mason was last updated on July 5, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.