DR. MICHAEL B MILLIS (MD) – Orthopaedic Surgery Physician, NPI 1528096047

DR. MICHAEL B MILLIS (MD) is a healthcare provider. based in Boston, Massachusetts. specializing in ORTHOPEDIC SURGERY. They hold the professional credentials MD. They hold a License No. 36894 (MA). The NPI Number for DR. MICHAEL B MILLIS (MD) is 1528096047

Main info

Male
56 Years Of Experience
Accepts Medicare Assignment
Name
DR. MICHAEL B MILLIS (MD)
NPI
1528096047
Phone
(617) 355-6773
Address
300 LONGWOOD AVENUE
Enumeration Date
30 June 2006
Last Update Date
10 October 2012

Doctor Profile

Medical School Name
HARVARD MEDICAL SCHOOL
Secondary Phone
6173556000
Graduation Year
1970 (56 years ago)
PAC ID
5294777439
Group Practice PAC ID
2365424876
Professional Enrollment ID
I20050526000911
Address ID
MA021155724BO300XXAVEX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience57
Completeness75
Years active:19State licenses:1Digital endpointsOther names

947 ORTHOPEDIC SURGERY in MA

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Provider Addresses for DR. MICHAEL B MILLIS (MD)

  • Children's Hospital Library, 300, Longwood Avenue, Roxbury, Boston, Suffolk County, Massachusetts, 02120, United States

    CHILDREN'S HOSPITAL, HUNNEWELL 213

    BOSTON, MA 02115

    Phone: (617) 355-6773

    Fax: (617) 730-0147

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2005-05-26

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20050526000911IOrthopedic SurgeryMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 02115)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 2365424876View full group profile
NameSpecialtyState
Orthopedic SurgeryNH
Physical Medicine And RehabilitationME
Orthopedic SurgeryNH
Orthopedic SurgeryMA
Orthopedic SurgeryMA
Orthopedic SurgeryMI
Physician AssistantMA
Orthopedic SurgeryMA
Orthopedic SurgeryMA
Physician AssistantMA

Reviews

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Frequently asked questions

What federal number belongs to DR. MICHAEL B MILLIS (MD)?
The federal identifier for DR. MICHAEL B MILLIS (MD) is NPI 1528096047.
Is DR. MICHAEL B MILLIS (MD) active in the national directory?
DR. MICHAEL B MILLIS (MD)'s public NPI profile is in an active state.
What does DR. MICHAEL B MILLIS (MD) treat or focus on?
Patients typically see DR. MICHAEL B MILLIS (MD) under the specialty Orthopaedic Surgery Physician. Clinical services aligned with this taxonomy classification.
Where is DR. MICHAEL B MILLIS (MD)'s primary listing?
We display Boston, Massachusetts because that is what the record indicates for DR. MICHAEL B MILLIS (MD).
What if Boston, Massachusetts seems incomplete?
Street-level detail can be omitted — open the full address list for this NPI.

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