WILLIAM JOSEPH MAZZELLA MD
NPI 1528158227
Hospitalist in Greenville, SC

Q: What is William Mazzella's NPI number?

The NPI number for William Mazzella is 1528158227. It was assigned to this individual provider in the NPPES registry on October 13, 2006.

Q: What is William Mazzella's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Q: When was this NPI record last updated?

The NPPES record for William Mazzella was last updated on January 31, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.

Active since October 13, 2006PECOS EnrolledAccepts Medicare Assignment

701 GROVE RD FL 5, GREENVILLE, SC 29605(864) 455-4411(864) 455-4480 Get Directions Write a Review

NPPES record last updated: January 31, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 31, 2023, Feb 5, 2021, Dec 9, 2020 and 4 more (7 updates tracked since 2019).

On this page

About William Joseph Mazzella Md NPPES

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

WILLIAM JOSEPH MAZZELLA MD (NPI 1528158227) is an individual hospitalist provider in Greenville, South Carolina, licensed in South Carolina (35221) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Prisma Health Oconee Memorial Hospital, and maintains 6 additional practice locations.

NPPES Registry Identity

NPI1528158227

Entity TypeIndividualMale

Primary Taxonomy208M00000X

Provider Legal NameWILLIAM JOSEPH MAZZELLACredential: MD

Location Address701 GROVE RD FL 5Greenville, SC 29605-4210

Mailing Address300 E Mcbee Ave Fl 4Greenville, SC 29601-2842

Phone(864) 455-4411

Fax(864) 455-4480

Sole ProprietorNo

Medical School CMSUniversity Of North Carolina At Chapel Hill School Of MedicineGraduated 1998

Enumeration DateOctober 13, 2006

Last NPPES UpdateJanuary 31, 20237 updates tracked since enumeration

NPPES CertifiedJanuary 31, 2023

✔ NPI 1528158227 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

Licenses✔ Licensed in SC · 35221✔ Licensed in NC · 200101093✔ Licensed in KY · 44676✔ Licensed in CO · DR0051332

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedInternal MedicineTaxonomy 207R00000X · License 311477 (LA), CV2005119 (IN)

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 200101093 (NC)

701 GROVE RD FL 5, Greenville, SC 29605

Open in Google Maps ↗

Secondary Practice Locations 6

Location 1309 Jackson StMonroe, LA 71201-7407 · Phone (318) 966-4541 · Fax (318) 966-4543

Location 219 Maxwell RdChapel Hill, NC 27517-4043 · Phone (704) 709-9362

Location 37777 Hennessy Blvd Ste 701Baton Rouge, LA 70808-4370 · Phone (225) 765-5864 · Fax (225) 765-2013

Location 4601 N Elm StHigh Point, NC 27262-4331 · Phone (336) 716-2255

Location 511109 Parkview Plaza DrFort Wayne, IN 46845-1701 · Phone (260) 266-2020

Location 65000 Hennessy BlvdBaton Rouge, LA 70808-4375 · Phone (225) 765-5864 · Fax (225) 765-2013

Other Identifiers 3

Medicaid5900336NC

MedicaidN0109ASC

Medicaid7100184720KY

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include AmeriHealth Caritas Next, Blue Cross and Blue Shield of Texas, CareSource 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

William Joseph Mazzella 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 ID8022079623

PECOS Enrollment IDI20211103001169

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 6

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.

191 services99 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

139 services129 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.

125 services79 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.

62 services61 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

36 services24 patients

Hospital discharge day management, 30 minutes or less 99238

Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.

13 services13 patients

Hospital Affiliations CMS Care Compare 4

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

Prisma Health Oconee Memorial Hospital

Acute Care Hospitals · Seneca, SC

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number420009

Location298 Memorial DrSeneca, SC 29672 · Oconee County

Emergency services Birthing friendly

Prisma Health Hillcrest Hospital

Acute Care Hospitals · Simpsonville, SC

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number420037

Location741 South East Main StreetSimpsonville, SC 29681 · Greenville County

Emergency services

Prisma Health Laurens County Hospital

Acute Care Hospitals · Clinton, SC

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number420038

Location22725 Highway 76 EastClinton, SC 29325 · Laurens County

Emergency services Birthing friendly

Prisma Health Greenville Memorial Hospital

Acute Care Hospitals · Greenville, SC

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number420078

Location701 Grove RoadGreenville, SC 29605 · Greenville County

Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29605 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

$124.04 typical visit price

range $53.57 – $163.84

Typical copayment $31.01 (range $13.39 – $40.96)

Most-billed visit code 99204

Established Patient

$95.12 typical visit price

range $16.96 – $133.52

Typical copayment $23.78 (range $4.24 – $33.38)

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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

3 suppliers14 claims14 services$19.90 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

3 suppliers14 claims14 services$111.59 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Patient Reviews User submitted

Reviews are submitted by site visitors and approved by a human moderator before publication.

Review by Carolyn ***** June 8, 2024

4/5

Dr Mazella was concise and to the point. We appreciated his candor and experience. We would highly recommend him to anyone. The staff for the most part was efficient and friendly. The guy who took out my IV and took the leads for my EKG off was abrupt and literally just ripped the cords off of me and told me I could take all the little sticky things off. Could have been nicer.

Provider 5/5 Office Staff 3/5

Visited this provider? Share your experience.

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.

BENJAMIN ELLIS RAWLS M.D.

Hospitalist