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DR. CATHERINE DIANE BUZNEY M.D.
NPI 1255788857
Anesthesiology in New York, NY

Active since May 24, 2016PECOS EnrolledAccepts Medicare Assignment
HOSPITAL FOR SPECIAL SURGERY, 535 EAST 70TH STREET, NEW YORK, NY 10021(212) 774-2302 Get Directions Write a Review

NPPES record last updated: April 14, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 14, 2021, Jun 12, 2020 (2 updates tracked since 2020).

About Dr. Catherine Diane Buzney M.d. NPPES

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

DR. CATHERINE DIANE BUZNEY M.D. (NPI 1255788857) is an individual anesthesiology provider in New York, New York, licensed in Massachusetts (266908) and active in the NPI registry since May 2016. She is enrolled in Medicare PECOS, is affiliated with Emerson Hospital -, and is a graduate of Tufts University School Of Medicine (2016).

NPPES Registry Identity

NPI1255788857
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameDR. CATHERINE DIANE BUZNEYCredential: M.D.
Location AddressHOSPITAL FOR SPECIAL SURGERY, 535 EAST 70TH STREETNew York, NY 10021
Mailing Address28 Huckleberry Hill RdLincoln, MA 01773-3509 · (617) 529-8527
Phone(212) 774-2302
Sole ProprietorYes
Medical School CMSTufts University School Of MedicineGraduated 2016
Enumeration DateMay 24, 2016
Last NPPES UpdateApril 14, 20212 updates tracked since enumeration
NPPES CertifiedApril 14, 2021
✔ NPI 1255788857 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in MA · 266908
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
HOSPITAL FOR SPECIAL SURGERY, New York, NY 10021
Open in Google Maps ↗

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. Catherine Diane Buzney 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 ID7517254493
PECOS Enrollment IDI20210901000128
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

2

Medicare enrollment records show Catherine Buzney reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Emerson Practice Associates II, Inc.
176 mi
Cardiovascular Disease
133 OLD ROAD TO 9 ACRE COR
Concord, MA 01742
  • Reassigned Medicare billing, Massachusetts enrollment
  • 72 clinicians in this Medicare group
NPI 1427383645 (978) 287-3234
Emerson Endoscopy And Digestive Health Center, LLC
177 mi
Anesthesiology
310 BAKER AVE STE 175A
Concord, MA 01742
  • Reassigned Medicare billing, Massachusetts enrollment
  • 21 clinicians in this Medicare group
NPI 1326717281 (978) 776-1710

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.

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
45 services43 patients
Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
33 services32 patients
Anesthesia for procedure to correct abnormal heart rhythm 00410
Anesthesia for a procedure to correct abnormal heart rhythm ensures you won't feel pain during the treatment. It can be general, where you're completely asleep, or local, numbing only a specific area. Your vital signs are monitored to ensure safety during the procedure.
18 services17 patients
Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) 64415
This procedure involves injecting a numbing agent or steroid into your arm's nerve bundle. It's done to manage pain or inflammation. The injection helps block nerve signals that cause discomfort, providing relief. It's a safe, common procedure.
17 services17 patients
Anesthesia for other procedure on urinary system through urethra 00910
Anesthesia for a procedure on the urinary system through the urethra involves using medicine to numb sensation in the area. This is done to ensure you feel no pain or discomfort during the procedure. The medicine can be given locally, regionally, or generally, depending on the specifics of your procedure.
12 services12 patients

Hospital Affiliations CMS Care Compare

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

Emerson Hospital -

Acute Care Hospitals · W Concord, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220084
Location133 Old Road To 9 Acre CornerW Concord, MA 01742 · Middlesex County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 6

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

DR. ALEXANDRE N MCDOUGALL M.D.
Student in an Organized Health Care Education/Training Program
HOSPITAL FOR SPECIAL SURGERY, 535 E 70TH ST
NEW YORK, NY 10021
New York County (212) 606-1000
DR. JAMES YUHENG JIANG M.D.
Student in an Organized Health Care Education/Training Program
HOSPITAL FOR SPECIAL SURGERY, 535 E 70TH ST MAIN HOSPITAL
NEW YORK, NY 10021
New York County (212) 606-1000
MR. THIRU SIVAKUMARAN M.D.
Student in an Organized Health Care Education/Training Program
HOSPITAL FOR SPECIAL SURGERY, 535 EAST 70TH STREET
NEW YORK, NY 10021
New York County (212) 606-1000
PAULINA PLASKON PA-C
Physician Assistant
HOSPITAL FOR SPECIAL SURGERY, 535 EAST 70TH STREET
NEW YORK CITY, NY 10021
New York County (212) 606-1000
SONAL S PARR MD
Internal Medicine
HOSPITAL FOR SPECIAL SURGERY, 535 EAST 70TH STREET
NEW YORK, NY 10021
New York County (914) 681-0600
DR. EVELYN PATRICA MURPHY MB BCH BAO
Student in an Organized Health Care Education/Training Program
HOSPITAL FOR SPECIAL SURGERY, 535 E 70TH ST
NEW YORK, NY 10021
New York County (646) 797-8227

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 Catherine Buzney's NPI number?

The NPI number for Catherine Buzney is 1255788857. It was assigned to this individual provider in the NPPES registry on May 24, 2016.

Where is Catherine Buzney located?

Catherine Buzney practices at Hospital For Special Surgery 535 East 70th Street, New York, NY 10021. The listed phone number is (212) 774-2302.

What is Catherine Buzney's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Catherine Buzney enrolled in Medicare?

Yes. Catherine Buzney 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 Catherine Buzney's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Catherine Buzney reassigns Medicare benefits to 2 organizations: Emerson Practice Associates II, Inc. (Concord, MA) and Emerson Endoscopy And Digestive Health Center, LLC (Concord, 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 Catherine Buzney's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Catherine Buzney affiliated with any hospitals?

According to CMS data, Catherine Buzney is affiliated with Emerson Hospital -.

When was this NPI record last updated?

The NPPES record for Catherine Buzney was last updated on April 14, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.