WILLIAM CLAY WARNICK M.D.
NPI 1710047790
Internal Medicine - Advanced Heart Failure and Transplant Cardiology in West Chester, PA

Q: What is William Warnick's NPI number?

The NPI number for William Warnick is 1710047790. It was assigned to this individual provider in the NPPES registry on December 11, 2006.

Q: What is William Warnick's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Advanced Heart Failure and Transplant Cardiology, with taxonomy code 207RA0001X.

Q: When was this NPI record last updated?

The NPPES record for William Warnick was last updated on August 7, 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 December 11, 2006PECOS EnrolledAccepts Medicare Assignment

98.3/100

CMS Quality Rating

915 OLD FERN HILL RD, BLDG A, STE 5, WEST CHESTER, PA 19380(610) 696-2850(610) 696-7159 Get Directions Write a Review

NPPES record last updated: August 7, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 7, 2023, Jul 14, 2023, May 25, 2018 and 1 more (4 updates tracked since 2018).

On this page

About William Clay Warnick M.d. NPPES

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

WILLIAM CLAY WARNICK M.D. (NPI 1710047790) is an individual advanced heart failure and transplant cardiology provider in West Chester, Pennsylvania, licensed in Pennsylvania (MD044706L) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with Lancaster General Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1710047790

Entity TypeIndividualMale

Primary Taxonomy207RA0001X

Provider Legal NameWILLIAM CLAY WARNICKCredential: M.D.

Location Address915 OLD FERN HILL RD, BLDG A, STE 5West Chester, PA 19380-4269

Mailing Address207 N Broad St, Fl 3Philadelphia, PA 19107-1500 · (610) 696-2850 · Fax (610) 696-7159

Phone(610) 696-2850

Fax(610) 696-7159

Sole ProprietorNo

Medical School CMSHahnemann University College Of MedicineGraduated 1989

Enumeration DateDecember 11, 2006

Last NPPES UpdateAugust 7, 20234 updates tracked since enumeration

NPPES CertifiedAugust 7, 2023

✔ NPI 1710047790 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Advanced Heart Failure and Transplant CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RA0001X

License✔ Licensed in PA · MD044706L

Definition

Specialists in Advanced Heart Failure and Transplant Cardiology would participate in the inpatient and outpatient management of patients with advanced heart failure across the spectrum from consideration for high-risk cardiac surgery, cardiac transplantation, or mechanical circulatory support, to pre-and post-operative evaluation and management of patients with cardiac transplants and mechanical support devices, and end-of-life care for patients with end-stage heart failure.

915 OLD FERN HILL RD, West Chester, PA 19380

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Secondary Practice Locations 3

Location 1142 Wallace Ave Ste 201Downingtown, PA 19335-2643 · Phone (610) 696-2850 · Fax (610) 696-7159

Location 2404 McFarlan Rd Bldg A Ste 102Kennett Square, PA 19348-2479 · Phone (610) 696-2850 · Fax (610) 696-7159

Location 3455 Woodview RdWest Grove, PA 19390-9303 · Phone (610) 696-2850 · Fax (610) 696-7159

Other Identifiers 1

Medicaid001257920PA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware 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 Clay Warnick M.d. 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 ID3779478565

PECOS Enrollment IDI20091208000331

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 29

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

1,671 services1,474 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

1,110 services1,046 patients

Injection, regadenoson, 0.1 mg J2785

Regadenoson injection, 0.1 mg, is a medication used to help visualize the heart during a stress test. It works by increasing blood flow in the arteries of the heart. It's injected into a vein and is generally well-tolerated.

450 services112 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

422 services381 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

416 services355 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

280 services278 patients

Physician review, interpretation, and patient management of home inr testing for patient with either mechanical heart valve(s), chronic atrial fibrillation, or venous thromboembolism who meets medicare coverage criteria; testing not occurring more frequent G0250

This service involves your doctor evaluating your home INR (a blood clotting test) results. It's for patients with a mechanical heart valve, chronic atrial fibrillation, or venous thromboembolism who meet specific criteria. It helps manage your treatment, but tests aren't conducted frequently.

153 services26 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician 93015

An exercise or drug-induced heart stress test with ECG is a procedure performed by a doctor to assess how your heart responds to exertion. It involves monitoring your heart's electrical activity while you exercise or after medication is given to mimic exercise effects.

136 services135 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

126 services126 patients

Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries A9555

Rubidium Rb-82 is a radioactive drug used in a PET scan to help visualize the heart. It helps detect areas with poor blood flow, aiding in diagnosing heart conditions. The dose is up to 60 millicuries per study.

112 services106 patients

Nuclear medicine studies of blood flow in heart muscle at rest and with stress with concurrent ct scan 78431

This is a diagnostic test where a tiny amount of radioactive material is used to examine your heart's blood flow at rest & during stress, alongside a CT scan for detailed images. It helps identify any heart-related issues like blockages or damage.

107 services106 patients

Nuclear medicine study of heart muscle blood flow by pet 78434

A nuclear medicine study of heart muscle blood flow by PET is a non-invasive test that uses a small amount of radioactive substance to create detailed images of your heart's blood flow and function. It helps assess heart health and diagnose heart conditions.

104 services103 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

103 services103 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.

94 services94 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.

57 services57 patients

Heart muscle strain imaging 93356

Heart muscle strain imaging is a non-invasive test that uses sound waves to create pictures of your heart. It helps doctors evaluate how well your heart muscle is working and detect any damage or disease. This can aid in diagnosing heart conditions and guiding treatment plans.

53 services53 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.

41 services34 patients

Ultrasound of heart with probe in esophagus, with report 93312

This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.

21 services21 patients

Ultrasound of heart blood flow, valves and chambers 93320

An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.

21 services21 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function 93325

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

21 services21 patients

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.

20 services16 patients

External shock to heart to regulate heart beat 92960

This procedure, known as cardioversion, uses an external electrical shock to restore your heart's normal rhythm. It's typically performed when irregular heartbeats, or arrhythmias, are causing severe symptoms and aren't responding to medications.

19 services18 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

18 services18 patients

Sleep study including heart rate, breathing, and sleep time 95800

A sleep study monitors your sleep patterns to evaluate your sleep quality. It records your heart rate, breathing, and actual sleep time. This information helps identify any sleep disorders, ensuring you get the rest you need for optimal health.

17 services17 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

16 services16 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

Technetium tc-99m tetrofosmin, diagnostic, per study dose A9502

Technetium Tc-99m Tetrofosmin is a radiopharmaceutical used in diagnostic imaging. It helps highlight areas of concern in the heart by emitting signals captured by a special camera. This assists doctors in detecting heart conditions.

14 services14 patients

Transitional care management services for problem of at least moderate complexity 99495

Transitional care management services focus on coordinating and managing your care after you leave the hospital. For moderate complexity problems, this involves managing your medications, arranging further treatments, and ensuring you have the necessary follow-ups.

12 services12 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

11 services11 patients

Hospital Affiliations CMS Care Compare 4

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

Lancaster General Hospital

Acute Care Hospitals · Lancaster, PA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390100

Location555 North Duke StreetLancaster, PA 17602 · Lancaster County

Emergency services Birthing friendly

Hospital Of Univ Of Pennsylvania

Acute Care Hospitals · Philadelphia, PA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390111

Location34th & Spruce StsPhiladelphia, PA 19104 · Philadelphia County

Emergency services Birthing friendly

Paoli Hospital

Acute Care Hospitals · Paoli, PA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390153

Location255 West Lancaster AvenuePaoli, PA 19301 · Chester County

Emergency services Birthing friendly

Chester County Hospital

Acute Care Hospitals · West Chester, PA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390179

Location701 East Marshall StreetWest Chester, PA 19380 · Chester County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19380 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

$137.17 typical visit price

range $59.88 – $180.99

Typical copayment $34.29 (range $14.97 – $45.24)

Most-billed visit code 99204

Established Patient

$105.21 typical visit price

range $19.30 – $147.29

Typical copayment $26.30 (range $4.82 – $36.82)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

98.3/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Promoting Interoperability

Improvement Activities

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.

DR. DONALD H ANDERSEN M.D.

Urology

915 OLD FERN HILL RD, BLDG., B SUITE 202
WEST CHESTER, PA 19380

Chester County (610) 692-4270

KAREN WOOD CRNP

Nurse Practitioner

915 OLD FERN HILL RD, BLDG D, SUITE 600
WEST CHESTER, PA 19380

Chester County (610) 692-3434

DR. THERESA MUSHENO FEENEY DPT

Physical Therapist

915 OLD FERN HILL RD, BUILDING A, SUITE 4
WEST CHESTER, PA 19380

Chester County (610) 738-2480

MRS. COLLEEN M DIBERNARDO M.S.P.T.

Physical Therapist

915 OLD FERN HILL RD, SUITE 4
WEST CHESTER, PA 19380

Chester County (610) 738-2480

CHRISTOPHER L BALDI DO

Internal Medicine (Cardiovascular Disease)

915 OLD FERN HILL RD, BLDG. A SUITE 5
WEST CHESTER, PA 19380

Chester County (610) 696-2850

ROBERT P LISS MD

Ophthalmology

915 OLD FERN HILL RD, BUILDING B STE 200
WEST CHESTER, PA 19380

Chester County (610) 696-1230

MATTHEW J SCHAEDLER O.D.

Optometrist

915 OLD FERN HILL RD, BUILDING B, SUITE 200
WEST CHESTER, PA 19380

Chester County (610) 696-1230

DR. RICHARD F. CHALFIN M.D.

Internal Medicine

915 OLD FERN HILL RD, FERN HILL CAMPUS-BUILDING A-SUITE 3
WEST CHESTER, PA 19380

Chester County (610) 738-2450

ERIC TURNER PA

Physician Assistant (Medical)

915 OLD FERN HILL RD, BLDG. A STE. 1
WEST CHESTER, PA 19380

Chester County (610) 692-6280

MRS. CHRISTINE MARIE SCHWEIDLER P.T.

Physical Therapist

915 OLD FERN HILL RD, SUITE 4
WEST CHESTER, PA 19380

Chester County (610) 738-2480

BARBARA J GUENST CRNP

Nurse Practitioner (Family)

915 OLD FERN HILL RD, BUILDING A, SUITE 3
WEST CHESTER, PA 19380

Chester County (610) 738-2450

RICHARD J MANSFIELD MD

Obstetrics & Gynecology

915 OLD FERN HILL RD, BLDG. D, SUITE 600
WEST CHESTER, PA 19380

Chester County (610) 692-3434

DR. JOHN H BENNER MD

Orthopaedic Surgery

915 OLD FERN HILL RD, SUITE 1 B-A
WEST CHESTER, PA 19380

Chester County (610) 692-6280

JENNIFER TEAL DEL ROSSI

Physical Medicine & Rehabilitation (Sports Medicine)

915 OLD FERN HILL RD
WEST CHESTER, PA 19380

Chester County (610) 738-2480

LAUREN MAZZOLA CRNP

Nurse Practitioner

915 OLD FERN HILL RD
WEST CHESTER, PA 19380

Chester County (610) 696-2850

DONNA M REED D.O.

Internal Medicine (Cardiovascular Disease)

915 OLD FERN HILL RD, BLDG A, STE 5
WEST CHESTER, PA 19380

Chester County (610) 696-2850

GREGORY ROBERT SPECA DPT

Physical Therapist

915 OLD FERN HILL RD, BUILDING A, SUITE 4
WEST CHESTER, PA 19380

Chester County (610) 518-5845

GREGG L NEITHARDT M.D.

Internal Medicine (Cardiovascular Disease)

915 OLD FERN HILL RD, BLDG A, STE 5
WEST CHESTER, PA 19380

Chester County (610) 696-2850

HAYLEY P DAVIS CRNP

Nurse Practitioner (Women's Health)

915 OLD FERN HILL RD, BLDG. D, SUITE 600
WEST CHESTER, PA 19380

Chester County (610) 692-3434

LINDA CAMLIN CRNP

Nurse Practitioner (Acute Care)

915 OLD FERN HILL RD, BUILDING B, SUITE 300
WEST CHESTER, PA 19380

Chester County (610) 431-3122

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 Warnick's NPI number?

The NPI number for William Warnick is 1710047790. It was assigned to this individual provider in the NPPES registry on December 11, 2006.

Where is William Warnick located?

William Warnick practices at 915 Old Fern Hill Rd Bldg A, Ste 5, West Chester, PA 19380. The listed phone number is (610) 696-2850.

What is William Warnick's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Advanced Heart Failure and Transplant Cardiology, with taxonomy code 207RA0001X.

Is William Warnick enrolled in Medicare?

Yes. William Warnick 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 Warnick accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Buckeye Health Plan and Highmark Blue Cross Blue Shield Delaware list William Warnick 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 Warnick affiliated with any hospitals?

According to CMS data, William Warnick is affiliated with Lancaster General Hospital, Hospital Of Univ Of Pennsylvania, Paoli Hospital and Chester County Hospital.

When was this NPI record last updated?

The NPPES record for William Warnick was last updated on August 7, 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.