1. Home
  2. Directory
  3. Massachusetts
  4. Boston
  5. Surgery
  6. NPI Profile

DR. SIGRID BAIRDAIN M.D. ,MPH
NPI 1942445895
Surgery in Boston, MA

Active since December 06, 2008PECOS EnrolledAccepts Medicare Assignment
300 LONGWOOD AVE FL FEGAN3, BOSTON, MA 02115(617) 355-6264 Get Directions Write a Review

NPPES record last updated: March 17, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 17, 2018, Jun 29, 2017 (2 updates tracked since 2017).

About Dr. Sigrid Bairdain M.d. ,mph NPPES

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

DR. SIGRID BAIRDAIN M.D. ,MPH (NPI 1942445895) is an individual surgery provider in Boston, Massachusetts, licensed in Massachusetts (259998) and active in the NPI registry since December 2008. She is enrolled in Medicare PECOS, is affiliated with Mount Sinai Medical Center Of Florida, Inc, and maintains a secondary practice location in Washington.

NPPES Registry Identity

NPI1942445895
Entity TypeIndividualFemale
Primary Taxonomy208600000X
Provider Legal NameDR. SIGRID BAIRDAINCredential: M.D. ,MPH
Location Address300 LONGWOOD AVE FL FEGAN3Boston, MA 02115-5724
Mailing Address300 Longwood Ave Fl Fegan3Boston, MA 02115-5724
Phone(617) 355-6264
Sole ProprietorNo
Medical School CMSGeorge Washington University School Of MedicineGraduated 2008
Enumeration DateDecember 6, 2008
Last NPPES UpdateMarch 17, 20182 updates tracked since enumeration
✔ NPI 1942445895 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Licenses✔ Licensed in MA · 259998✔ Licensed in DC · BD7904445SB133
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
300 LONGWOOD AVE FL FEGAN3, Boston, MA 02115
Open in Google Maps ↗

Secondary Practice Location 1

Location 12150 Pennsylvania Ave NW, Suite 6B, Department of SurgeryWashington, DC 20037-3201 · Phone (202) 294-0298

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, Blue Cross Blue Shield of Wyoming, Imperial Insurance Companies, Inc. and more.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

Dr. Sigrid Bairdain M.d. ,mph 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 ID941566749
PECOS Enrollment IDI20200226000051, I20231108001254
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

14

Medicare enrollment records show Sigrid Bairdain reassigns Medicare billing to 14 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Critical Care Medical Management Associates PLLC
166 mi
Critical Care Medicine
701 N BROADWAY
Sleepy Hollow, NY 10591
  • Reassigned Medicare billing, Florida enrollment
  • 15 clinicians in this Medicare group
NPI 1194090878 (914) 366-3000
Ccmma Sc LLC
767 mi
Critical Care Medicine
129 N WASHINGTON ST
Sumter, SC 29150
  • Reassigned Medicare billing, Arizona enrollment
  • 6 clinicians in this Medicare group
NPI 1245715796 (803) 774-9000
Morehouse Healthcare, Inc.
932 mi
Cardiovascular Disease
1800 HOWELL MILL RD NW STE 275
Atlanta, GA 30318
  • Reassigned Medicare billing, Georgia enrollment
  • 322 clinicians in this Medicare group
NPI 1801832324 (404) 752-1000
Invision Health Florida, LLC
1,193 mi
Neurological Surgery
1620 SOUTHERN BLVD
West Palm Beach, FL 33406
  • Reassigned Medicare billing, Florida enrollment
  • 42 clinicians in this Medicare group
NPI 1134728561 (561) 800-4111
Collins Intensivist Group, PA
1,249 mi
Critical Care Medicine
4300 ALTON RD
Miami Beach, FL 33140
  • Reassigned Medicare billing, Florida enrollment
  • 44 clinicians in this Medicare group
NPI 1750092417 (305) 481-9776
Honorhealth Ambulatory
2,274 mi
Orthopaedic Surgery
16838 E PALISADES BLVD, BLDG C STE 152A
Fountain Hills, AZ 85268
  • Reassigned Medicare billing, Arizona enrollment
  • 822 clinicians in this Medicare group
NPI 1851905004 (480) 587-6550
Sound Physicians Intensivists Of Arizona, Inc
2,283 mi
Internal Medicine
1601 W SAINT MARYS RD
Tucson, AZ 85745
  • Reassigned Medicare billing, Arizona enrollment
  • 66 clinicians in this Medicare group
NPI 1962944702 (520) 872-3000
Arizona Acute Medical Services 1 PC
2,295 mi
Hospitalist
1930 E THOMAS RD
Phoenix, AZ 85016
  • Reassigned Medicare billing, Arizona enrollment
  • 302 clinicians in this Medicare group
NPI 1154860674 (602) 532-1000
Pih Health Physicians
2,516 mi
Interventional Cardiology
399 E HIGHLAND AVE STE 424
San Bernardino, CA 92404
  • Reassigned Medicare billing, California enrollment
  • 840 clinicians in this Medicare group
NPI 1821758111 (909) 949-3977
Skilled Physicians Group
2,589 mi
General Practice
3747 FOOTHILL BLVD # B140
Glendale, CA 91214
  • Reassigned Medicare billing, Florida enrollment
  • 3 clinicians in this Medicare group
NPI 1902444623 (310) 445-5999

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.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
161 services99 patients
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.
151 services99 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.
59 services47 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
41 services33 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.
31 services31 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.
19 services19 patients

Hospital Affiliations CMS Care Compare 2

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

Mount Sinai Medical Center Of Florida, Inc

Acute Care Hospitals · Miami Beach, FL
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number100034
Location4300 Alton RdMiami Beach, FL 33140 · Miami-Dade County
Emergency services Birthing friendly

Palm Beach Gardens Medical Center

Acute Care Hospitals · Palm Beach Gardens, FL
1/5 CMS rating
OwnershipProprietary
CMS Certification Number100176
Location3360 Burns RdPalm Beach Gardens, FL 33410 · Palm Beach County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02115 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
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$78.84 typical visit price
range $21.07 – $155.29
Typical copayment $19.71 (range $5.26 – $38.82)
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.

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 Sigrid Bairdain's NPI number?

The NPI number for Sigrid Bairdain is 1942445895. It was assigned to this individual provider in the NPPES registry on December 6, 2008.

Where is Sigrid Bairdain located?

Sigrid Bairdain practices at 300 Longwood Ave Fl Fegan3, Boston, MA 02115. The listed phone number is (617) 355-6264.

What is Sigrid Bairdain's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Sigrid Bairdain enrolled in Medicare?

Yes. Sigrid Bairdain 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 Sigrid Bairdain's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sigrid Bairdain reassigns Medicare benefits to 14 organizations: Critical Care Medical Management Associates PLLC (Sleepy Hollow, NY), Ccmma Sc LLC (Sumter, SC), Morehouse Healthcare, Inc. (Atlanta, GA), Invision Health Florida, LLC (West Palm Beach, FL), Collins Intensivist Group, PA (Miami Beach, FL) and 9 more organizations, listed in the Medicare section above. 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 Sigrid Bairdain's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sigrid Bairdain accept?

Health plans from Blue Cross Blue Shield of Arizona, Blue Cross Blue Shield of Wyoming, Imperial Insurance Companies, Inc., Oscar Health and Oscar Health Maintenance Organization of Florida and 2 other insurers list Sigrid Bairdain 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 Sigrid Bairdain affiliated with any hospitals?

According to CMS data, Sigrid Bairdain is affiliated with Mount Sinai Medical Center Of Florida, Inc and Palm Beach Gardens Medical Center.

When was this NPI record last updated?

The NPPES record for Sigrid Bairdain was last updated on March 17, 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.