WILLIAM JAMES MUGG MD
NPI 1689761959
Internal Medicine in So Hadley, MA

Active since October 06, 2006PECOS EnrolledAccepts Medicare Assignment
48.31/100
CMS Quality Rating
96 LYMAN ST, SO HADLEY, MA 01075(413) 533-7176(413) 552-0181 Get Directions Write a Review

NPPES record last updated: February 14, 2013. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About William James Mugg Md NPPES

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

WILLIAM JAMES MUGG MD (NPI 1689761959) is an individual internal medicine provider in So Hadley, Massachusetts, licensed in Massachusetts (38722) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Holyoke Medical Center, and is a graduate of University Of Michigan Medical School (1970).

NPPES Registry Identity

NPI1689761959
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameWILLIAM JAMES MUGGCredential: MD
Location Address96 LYMAN STSo Hadley, MA 01075
Mailing Address96 Lyman StSouth Hadley, MA 01075-2352 · (413) 533-7176 · Fax (413) 552-0181
Fax(413) 552-0181
Sole ProprietorNo
Medical School CMSUniversity Of Michigan Medical SchoolGraduated 1970
Enumeration DateOctober 6, 2006
Last NPPES UpdateFebruary 14, 2013
NPI 1689761959 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in MA · 38722
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

96 LYMAN ST, So Hadley, MA 01075

Other Identifiers 3

Medicare ID-Type Unspecified42MUH06010MA
Medicaid0158992MA
Medicare UPINA55461

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 James Mugg 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 ID1254371552
PECOS Enrollment IDI20050505000918
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 11

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.
691 services170 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.
164 services89 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.
160 services146 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.
150 services134 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
149 services96 patients
Urinalysis, manual test 81002
A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.
143 services123 patients

Hospital Affiliations CMS Care Compare

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

Holyoke Medical Center

Acute Care Hospitals · Holyoke, MA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220024
Location575 Beech StreetHolyoke, MA 01040 · Hampden County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01075 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
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
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.

48.31/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality40
Improvement Activities0
Cost98.47

Referred Medical Equipment & Supplies CMS DME claims 16

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
16 suppliers88 claims255 services$6.24 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
8 suppliers25 claims43 services$1.13 avg. paid by Medicare
Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
4 suppliers21 claims21 services$32.74 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
2 suppliers13 claims13 services$68.87 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
2 suppliers13 claims37 services$27.31 avg. paid by Medicare
Headgear used with positive airway pressure device A7035
DME-Other DME · category DE001N
5 suppliers14 claims14 services$16.97 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

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

Social Worker (Clinical)
96 LYMAN ST
SOUTH HADLEY, MA 01075

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 Mugg's NPI number?

The NPI number for William Mugg is 1689761959. It was assigned to this individual provider in the NPPES registry on October 6, 2006.

Where is William Mugg located?

William Mugg practices at 96 Lyman St, So Hadley, MA 01075. The listed phone number is (413) 533-7176.

What is William Mugg's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is William Mugg enrolled in Medicare?

Yes. William Mugg 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.

Is William Mugg affiliated with any hospitals?

According to CMS data, William Mugg is affiliated with Holyoke Medical Center.

When was this NPI record last updated?

The NPPES record for William Mugg was last updated on February 14, 2013. NPI Profile syncs with the weekly NPPES data releases published by CMS.