WILLIAM L HISER M.D.
NPI 1366481459
Internal Medicine - Cardiovascular Disease in Springfield, MA

Q: What is William Hiser's NPI number?

The NPI number for William Hiser is 1366481459. It was assigned to this individual provider in the NPPES registry on June 5, 2006.

Q: What is William Hiser's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for William Hiser was last updated on January 19, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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 June 05, 2006PECOS EnrolledAccepts Medicare Assignment

3300 MAIN ST, 2ND FL SUITE A, SPRINGFIELD, MA 01107(413) 794-2273(413) 794-0198 Get Directions Write a Review

NPPES record last updated: January 19, 2018. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 19, 2018, May 19, 2016 (2 updates tracked since 2016).

On this page

About William L Hiser M.d. NPPES

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

WILLIAM L HISER M.D. (NPI 1366481459) is an individual cardiovascular disease provider in Springfield, Massachusetts, licensed in Massachusetts (159655) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Baystate Franklin Medical Center, and is a graduate of University Of Texas Southwestern Medical School At Dallas (1993).

NPPES Registry Identity

NPI1366481459

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameWILLIAM L HISERCredential: M.D.

Location Address3300 MAIN ST, 2ND FL SUITE ASpringfield, MA 01107-1112

Mailing Address280 Chestnut St, 2nd FlSpringfield, MA 01199-1001 · (413) 794-5700

Phone(413) 794-2273

Fax(413) 794-0198

Sole ProprietorNo

Medical School CMSUniversity Of Texas Southwestern Medical School At DallasGraduated 1993

Enumeration DateJune 5, 2006

Last NPPES UpdateJanuary 19, 20182 updates tracked since enumeration

✔ NPI 1366481459 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 MA · 159655

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.

3300 MAIN ST, Springfield, MA 01107

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.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 L Hiser 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 ID7911950662

PECOS Enrollment IDI20050223000177

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 21

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.

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.

1,335 services1,138 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.

1,133 services1,077 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.

138 services137 patients

Ultrasound of heart, follow-up 93308

A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.

135 services126 patients

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.

102 services97 patients

Ultrasound of heart blood flow, valves and chambers, follow-up 93321

This procedure, an echocardiogram, uses sound waves to create images of your heart. It aids in assessing your heart's blood flow, chambers, and valves. It's a follow-up procedure, ensuring that your heart is functioning properly post-treatment.

100 services100 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.

72 services72 patients

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

58 services58 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.

58 services57 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.

53 services50 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.

48 services48 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.

46 services45 patients

3d radiographic procedure 76376

A 3D radiographic procedure is a non-invasive imaging test that helps doctors visualize the internal structures of your body in three dimensions. This advanced technology provides detailed images, aiding in accurate diagnosis and treatment planning. It involves exposure to minimal radiation.

38 services19 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.

38 services26 patients

3d radiographic procedure with computerized image postprocessing 76377

A 3D radiographic procedure with computerized image postprocessing is a high-tech imaging test. It uses X-rays to create detailed 3D images of the body. The computerized postprocessing further enhances these images for more precise diagnosis and treatment planning.

37 services21 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.

30 services30 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.

25 services25 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.

23 services23 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.

18 services18 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

17 services17 patients

Ultrasound of heart during rest, exercise and/or drug-induced stress with report 93350

This procedure involves using ultrasound imaging to view your heart at rest, during exercise, and/or under drug-induced stress. It helps assess how well your heart responds to exertion. A report of the findings is provided after the test.

15 services15 patients

Hospital Affiliations CMS Care Compare 5

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

Baystate Franklin Medical Center

Acute Care Hospitals · Greenfield, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220016

Location164 High StreetGreenfield, MA 01301 · Franklin County

Emergency services Birthing friendly

Baystate Wing Hospital

Acute Care Hospitals · Palmer, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number220030

Location40 Wright StreetPalmer, MA 01069 · Hampden County

Emergency services

Berkshire Medical Center

Acute Care Hospitals · Pittsfield, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number220046

Location725 North StreetPittsfield, MA 01201 · Berkshire County

Emergency services Birthing friendly

Baystate Noble Hospital

Acute Care Hospitals · Westfield, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220065

Location115 West Silver StreetWestfield, MA 01085 · Hampden County

Emergency services

Baystate Medical Center

Acute Care Hospitals · Springfield, MA

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220077

Location759 Chestnut StreetSpringfield, MA 01199 · Hampden County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01107 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

$134.47 typical visit price

range $58.86 – $177.36

Typical copayment $33.61 (range $14.71 – $44.34)

Most-billed visit code 99204

Established Patient

$73.22 typical visit price

range $19.11 – $144.84

Typical copayment $18.30 (range $4.77 – $36.21)

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.

JOANNE JACKSON NP

Nurse Practitioner (Adult Health)

3300 MAIN ST, 2ND FLOOR, SUITE A
SPRINGFIELD, MA 01107

Hampden County (413) 794-2273

ALANNA SERVANT PA-C

Physician Assistant (Medical)

3300 MAIN ST, SUITE 4D
SPRINGFIELD, MA 01107

Hampden County (413) 794-8336

AUDREY G PSALTIS CNM

Advanced Practice Midwife

3300 MAIN ST, SUITE 4D
SPRINGFIELD, MA 01107

Hampden County (413) 794-8336

BARBARA W GRAVES CNM

Advanced Practice Midwife

3300 MAIN ST, SUTIE 4-D
SPRINGFIELD, MA 01107

Hampden County (413) 794-8336

MUSAB MEDENI ZORLU MD

Psychiatry & Neurology (Neurology)

3300 MAIN ST
SPRINGFIELD, MA 01107

Hampden County (413) 794-5600

MICHELLE F RAPPOLD CNM

Advanced Practice Midwife

3300 MAIN ST
SPRINGFIELD, MA 01107

Hampden County (413) 794-8336

DR. DAVID R. KATTAN MD, MPH

Obstetrics & Gynecology

3300 MAIN ST, 4TH FL, STE D
SPRINGFIELD, MA 01107

Hampden County (413) 794-7045

ANASTASIA SMITH CNM

Advanced Practice Midwife

3300 MAIN ST
SPRINGFIELD, MA 01107

Hampden County (413) 794-7045

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 Hiser's NPI number?

The NPI number for William Hiser is 1366481459. It was assigned to this individual provider in the NPPES registry on June 5, 2006.

Where is William Hiser located?

William Hiser practices at 3300 Main St 2nd Fl Suite A, Springfield, MA 01107. The listed phone number is (413) 794-2273.

What is William Hiser's specialty?

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

Is William Hiser enrolled in Medicare?

Yes. William Hiser 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 Hiser accept?

Health plans from Anthem Blue Cross and Blue Shield list William Hiser 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 Hiser affiliated with any hospitals?

According to CMS data, William Hiser is affiliated with Baystate Franklin Medical Center, Baystate Wing Hospital, Berkshire Medical Center, Baystate Noble Hospital and Baystate Medical Center.

When was this NPI record last updated?

The NPPES record for William Hiser was last updated on January 19, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.