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HAISUN LIAO MD
NPI 1417022898
Internal Medicine in Milford, MA

Active since November 21, 2006PECOS EnrolledAccepts Medicare Assignment
14 PROSPECT ST, MILFORD, MA 01757(508) 473-1190(508) 482-5416 Get Directions Write a Review

NPPES record last updated: September 3, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 3, 2025, Apr 25, 2017 (2 updates tracked since 2017).

About Haisun Liao Md NPPES

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

HAISUN LIAO MD (NPI 1417022898) is an individual internal medicine provider in Milford, Massachusetts, licensed in Massachusetts (234247) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS, is affiliated with Sturdy Memorial Hospital, and is a graduate of Other (1986).

NPPES Registry Identity

NPI1417022898
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameHAISUN LIAOCredential: MD
Location Address14 PROSPECT STMilford, MA 01757-3003
Mailing Address9 Industrial Rd Ste 5Milford, MA 01757-3736 · (508) 473-1480 · Fax (508) 473-1210
Phone(508) 473-1190
Fax(508) 482-5416
Sole ProprietorNo
Medical School CMSOtherGraduated 1986
Enumeration DateNovember 21, 2006
Last NPPES UpdateSeptember 3, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 3, 2025
✔ NPI 1417022898 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 · 234247
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.
14 PROSPECT ST, Milford, MA 01757
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Taro Health, WellSense Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Haisun Liao 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 ID4183799281
PECOS Enrollment IDI20080826000041
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.

Medicare Billing Reassignments

5

Medicare enrollment records show Haisun Liao reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Milford Regional Physician Group, Inc.
0.3 mi
Cardiovascular Disease
308 MAIN ST
Milford, MA 01757
  • Reassigned Medicare billing, Massachusetts enrollment
  • 238 clinicians in this Medicare group
NPI 1285031039 (508) 731-2560
Umass Memorial Medical Group Inc
15 mi
Internal Medicine
55 LAKE AVE N
Worcester, MA 01655
  • Reassigned Medicare billing, Massachusetts enrollment
  • 2,902 clinicians in this Medicare group
NPI 1760445373 (508) 334-1000
Sturdy Health Inc
19 mi
Hospitalist
211 PARK ST
Attleboro, MA 02703
  • Reassigned Medicare billing, Massachusetts enrollment
  • 63 clinicians in this Medicare group
NPI 1063866176 (508) 236-7901
Steward Medical Group, Inc
24 mi
Specialist
9 GALEN ST
Watertown, MA 02472
  • Reassigned Medicare billing, Massachusetts enrollment
  • 1,103 clinicians in this Medicare group
NPI 1629398219 (615) 467-4474
Sound Physicians Of Massachusetts II PC
24 mi
Internal Medicine
235 N PEARL ST
Brockton, MA 02301
  • Reassigned Medicare billing, Massachusetts enrollment
  • 173 clinicians in this Medicare group
NPI 1306376397 (615) 377-5658

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 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.
579 services342 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.
440 services226 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.
280 services273 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.
99 services97 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.
73 services73 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
19 services11 patients

Hospital Affiliations CMS Care Compare 4

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

Sturdy Memorial Hospital

Acute Care Hospitals · Attleboro, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number220008
Location211 Park StreetAttleboro, MA 02703 · Bristol County
Emergency services Birthing friendly

Milford Regional Medical Center

Acute Care Hospitals · Milford, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number220090
Location14 Prospect StreetMilford, MA 01757 · Worcester County
Emergency services Birthing friendly

Tufts Medical Center

Acute Care Hospitals · Boston, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220116
Location800 Washington StreetBoston, MA 02111 · Suffolk County
Emergency services Birthing friendly

Umass Memorial Medical Center/University Campus

Acute Care Hospitals · Worcester, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220163
Location55 Lake Avenue NorthWorcester, MA 01655 · Worcester County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01757 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.

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
2 suppliers28 claims28 services$14.99 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 suppliers43 claims43 services$67.11 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 20

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

DR. SETH WAKEFIELD MD
Internal Medicine
14 PROSPECT ST
MILFORD, MA 01757
Worcester County (508) 473-1190
SONIA MCCARTHY RD, LDN
Dietitian, Registered (Nutrition, Obesity and Weight Management)
14 PROSPECT ST
MILFORD, MA 01757
Worcester County (508) 473-1190
MONA S KADDIS M.D.
Internal Medicine (Hematology & Oncology)
14 PROSPECT ST, 2ND FLOOR
MILFORD, MA 01757
Worcester County (508) 478-2061
VERA HERNANDEZ-HOLMES PA-C, RD
Physician Assistant (Medical)
14 PROSPECT ST
MILFORD, MA 01757
Worcester County (508) 473-1190
MR. MONZOLESSO JOEL BAGAH-KOGNAGBA MD
Internal Medicine
14 PROSPECT ST
MILFORD, MA 01757
Worcester County (508) 473-1190
ADALIA JUN-O'CONNELL M.D.
Psychiatry & Neurology (Vascular Neurology)
14 PROSPECT ST
MILFORD, MA 01757
Worcester County (508) 381-5016
MAURA JEAN EATON PT, DPT
Physical Therapist
14 PROSPECT ST
MILFORD, MA 01757
Worcester County (508) 442-2552
MILFORD IMAGING, INC.
Specialist
14 PROSPECT ST, DEPARTMENT OF RADIOLOGY
MILFORD, MA 01757
Worcester County (508) 422-2922

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 Haisun Liao's NPI number?

The NPI number for Haisun Liao is 1417022898. It was assigned to this individual provider in the NPPES registry on November 21, 2006.

Where is Haisun Liao located?

Haisun Liao practices at 14 Prospect St, Milford, MA 01757. The listed phone number is (508) 473-1190.

What is Haisun Liao's specialty?

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

Is Haisun Liao enrolled in Medicare?

Yes. Haisun Liao 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.

Which organizations bill Medicare for Haisun Liao's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Haisun Liao reassigns Medicare benefits to 5 organizations: Milford Regional Physician Group, Inc. (Milford, MA), Umass Memorial Medical Group Inc (Worcester, MA), Sturdy Health Inc (Attleboro, MA), Steward Medical Group, Inc (Watertown, MA) and Sound Physicians Of Massachusetts II PC (Brockton, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Haisun Liao's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Haisun Liao accept?

Health plans from Taro Health and WellSense Health Plan list Haisun Liao 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 Haisun Liao affiliated with any hospitals?

According to CMS data, Haisun Liao is affiliated with Sturdy Memorial Hospital, Milford Regional Medical Center, Tufts Medical Center and Umass Memorial Medical Center/University Campus.

When was this NPI record last updated?

The NPPES record for Haisun Liao was last updated on September 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.