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MYRON SIU M.D.
NPI 1033218359
Internal Medicine in Boston, MA

Active since September 22, 2006PECOS EnrolledAccepts Medicare Assignment
TUFTS-NEMC, 750 WASHINGTON STREET, NEMC #796, BOSTON, MA 02111(617) 636-2673 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Myron Siu M.d. NPPES

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

MYRON SIU M.D. (NPI 1033218359) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (214180) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Melrosewakefield Healthcare, and is a graduate of University Of California, San Diego School Of Medicine (2000).

NPPES Registry Identity

NPI1033218359
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMYRON SIUCredential: M.D.
Location AddressTUFTS-NEMC, 750 WASHINGTON STREET, NEMC #796Boston, MA 02111
Mailing AddressTufts-nemc, 750 Washington Street, Nemc #796Boston, MA 02111 · (617) 636-2673
Phone(617) 636-2673
Sole ProprietorNo
Medical School CMSUniversity Of California, San Diego School Of MedicineGraduated 2000
Enumeration DateSeptember 22, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1033218359 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 · 214180
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.
TUFTS-NEMC, Boston, MA 02111
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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, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Myron Siu 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 ID1254310394
PECOS Enrollment IDI20040714000468
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 Reassignment

Medicare enrollment records show Myron Siu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pratt Medical Group, Inc
Same address
Internal Medicine
800 WASHINGTON ST, BOX 1013
Boston, MA 02111
  • Reassigned Medicare billing, Massachusetts enrollment
  • 334 clinicians in this Medicare group
NPI 1275570319 (617) 636-5000

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 5

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.
299 services147 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
74 services74 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.
73 services47 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
37 services37 patients
Annual depression screening, 5 to 15 minutes G0444
An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.
23 services23 patients

Hospital Affiliations CMS Care Compare 2

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

Melrosewakefield Healthcare

Acute Care Hospitals · Melrose, MA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220070
Location585 Lebanon StreetMelrose, MA 02176 · Middlesex 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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02111 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
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.

Referred Medical Equipment & Supplies CMS DME claims 7

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
6 suppliers33 claims68 services$5.38 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
2 suppliers12 claims16 services$0.92 avg. paid by Medicare
Male external catheter, with or without adhesive, disposable, each A4349
DME-Medical/Surgical Supplies · category DA000N
1 supplier11 claims385 services$1.94 avg. paid by Medicare
Intermittent urinary catheter, with insertion supplies A4353
DME-Orthotic Devices · category DF008N
1 supplier11 claims2,200 services$6.77 avg. paid by Medicare
Bedside drainage bag, day or night, with or without anti-reflux device, with or without tube, each A4357
DME-Orthotic Devices · category DF000N
1 supplier11 claims22 services$7.99 avg. paid by Medicare
Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620
DME-Drugs Administered Through DME · category DG006N
2 suppliers11 claims630 services$0.08 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.

MICHELLE L WEIL M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
TUFTS-NEMC, 750 WASHINGTON ST #268
BOSTON, MA 02111
Suffolk County (617) 636-1216

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 Myron Siu's NPI number?

The NPI number for Myron Siu is 1033218359. It was assigned to this individual provider in the NPPES registry on September 22, 2006.

Where is Myron Siu located?

Myron Siu practices at Tufts-Nemc 750 Washington Street, Nemc #796, Boston, MA 02111. The listed phone number is (617) 636-2673.

What is Myron Siu's specialty?

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

Is Myron Siu enrolled in Medicare?

Yes. Myron Siu 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 organization bills Medicare for Myron Siu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Myron Siu reassigns Medicare benefits to Pratt Medical Group, Inc (Boston, MA). The 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 Myron Siu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Myron Siu accept?

Health plans from Anthem Blue Cross and Blue Shield list Myron Siu 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 Myron Siu affiliated with any hospitals?

According to CMS data, Myron Siu is affiliated with Melrosewakefield Healthcare and Tufts Medical Center.

When was this NPI record last updated?

The NPPES record for Myron Siu was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.