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EMMA RYAN M.D.
NPI 1033571641
Anesthesiology in Danbury, CT

Active since March 23, 2016PECOS EnrolledAccepts Medicare Assignment
24 HOSPITAL AVE, DANBURY, CT 06810(203) 739-7000 Get Directions Write a Review

NPPES record last updated: February 20, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Feb 20, 2025, Mar 23, 2016 (2 updates tracked since 2016).

About Emma Ryan M.d. NPPES

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

EMMA RYAN M.D. (NPI 1033571641) is an individual anesthesiology provider in Danbury, Connecticut, licensed in Connecticut (80228) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS and is a graduate of Pennsylvania State University College Of Medicine (2016).

NPPES Registry Identity

NPI1033571641
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameEMMA RYANCredential: M.D.
Location Address24 HOSPITAL AVEDanbury, CT 06810-6077
Mailing Address24 Hospital AveDanbury, CT 06810-6077
Phone(203) 739-7000
Sole ProprietorNo
Medical School CMSPennsylvania State University College Of MedicineGraduated 2016
Enumeration DateMarch 23, 2016
Last NPPES UpdateFebruary 20, 20252 updates tracked since enumeration
NPPES CertifiedFebruary 20, 2025
✔ NPI 1033571641 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CT · 80228
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.
24 HOSPITAL AVE, Danbury, CT 06810
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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

Emma Ryan 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 ID7618261090
PECOS Enrollment IDI20250320003037
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

3

Medicare enrollment records show Emma Ryan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Nuvance Health Medical Practice Ct, Inc.
2.8 mi
Internal Medicine
24 HOSPITAL AVE
Danbury, CT 06810
  • Reassigned Medicare billing, Connecticut enrollment
  • 818 clinicians in this Medicare group
NPI 1407898117 (203) 739-7742
Society Hill Anesthesia Consultants, PC
137 mi
Anesthesiology
800 SPRUCE ST
Philadelphia, PA 19107
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 353 clinicians in this Medicare group
NPI 1427003219 (215) 829-5664
United Anesthesia Services PC
139 mi
Anesthesiology
100 E LANCASTER AVE
Wynnewood, PA 19096
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 489 clinicians in this Medicare group
NPI 1053366062 (484) 476-2000

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 11

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.

Ultrasonic guidance for blood vessel access 76937
Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.
58 services51 patients
Insertion of artery tube for blood sampling or infusion through skin 36620
This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.
56 services56 patients
Ultrasound of heart with probe in esophagus, with report 93312
This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.
22 services22 patients
Anesthesia for procedure on heart and large blood vessels 00560
Anesthesia for heart and large blood vessel procedures involves using medications to block sensation, ensuring you don't feel pain during surgery. It can be general (you're asleep) or regional (part of your body is numbed). It helps ensure comfort and safety throughout the operation.
21 services21 patients
Ultrasound of heart blood flow, valves and chambers 93320
An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.
21 services21 patients
3d ultrasound imaging of heart for evaluation of heart structure performed during ultrasound imaging of congenital heart defects 93319
3D ultrasound imaging of the heart is a non-invasive procedure that uses sound waves to create a detailed three-dimensional image of your heart. This helps in evaluating the heart's structure, particularly for diagnosing congenital heart defects. It is safe, painless and provides valuable information about your heart health.
20 services20 patients

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. ANDREW CALIGIURI D.O.
Emergency Medicine
24 HOSPITAL AVE
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7000
GARRETT JAFFE
Nurse Anesthetist, Certified Registered
24 HOSPITAL AVE
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7118
DR. SUHANKI RAJAPAKSA M.D
Student in an Organized Health Care Education/Training Program
24 HOSPITAL AVE
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-4973
MR. PETER X ZHANG PA-C
Physician Assistant (Surgical)
24 HOSPITAL AVE
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7000
CHRISTIE ALLEN
Nurse Practitioner (Acute Care)
24 HOSPITAL AVE
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7000
DANBURY OFFICE OF PHYSICIAN SERVICES, P.C.
Anesthesiology
24 HOSPITAL AVE
DANBURY, CT 06810
Western Connecticut Planning Region (203) 797-7442
REBECCA E. PIKE M.D.
Internal Medicine
24 HOSPITAL AVE
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7000
JACOB BARTEL LOTSTEIN M.D.
Emergency Medicine
24 HOSPITAL AVE
DANBURY, CT 06810
Western Connecticut Planning Region (203) 739-7100

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 Emma Ryan's NPI number?

The NPI number for Emma Ryan is 1033571641. It was assigned to this individual provider in the NPPES registry on March 23, 2016.

Where is Emma Ryan located?

Emma Ryan practices at 24 Hospital Ave, Danbury, CT 06810. The listed phone number is (203) 739-7000.

What is Emma Ryan's specialty?

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

Is Emma Ryan enrolled in Medicare?

Yes. Emma Ryan 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 Emma Ryan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Emma Ryan reassigns Medicare benefits to 3 organizations: Nuvance Health Medical Practice Ct, Inc. (Danbury, CT), Society Hill Anesthesia Consultants, PC (Philadelphia, PA) and United Anesthesia Services PC (Wynnewood, PA). 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 Emma Ryan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Emma Ryan was last updated on February 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.