RYAN JOSEPH LONGFELLOW MD
NPI 1356768683
Anesthesiology in Madison, WI

Q: What is Ryan Longfellow's NPI number?

The NPI number for Ryan Longfellow is 1356768683. It was assigned to this individual provider in the NPPES registry on March 25, 2014.

Q: What is Ryan Longfellow's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Ryan Longfellow was last updated on May 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.

Active since March 25, 2014PECOS EnrolledAccepts Medicare Assignment

600 HIGHLAND AVE, MADISON, WI 53792(608) 263-8100(608) 262-6247 Get Directions Write a Review

NPPES record last updated: May 27, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 27, 2025, Oct 31, 2023, May 17, 2023 and 3 more (6 updates tracked since 2020).

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About Ryan Joseph Longfellow Md NPPES

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

RYAN JOSEPH LONGFELLOW MD (NPI 1356768683) is an individual anesthesiology provider in Madison, Wisconsin, licensed in Wisconsin (81042) and active in the NPI registry since March 2014. He is enrolled in Medicare PECOS, is affiliated with University Of Wi Hospitals & Clinics Authority, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1356768683

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameRYAN JOSEPH LONGFELLOWCredential: MD

Location Address600 HIGHLAND AVEMadison, WI 53792-1902

Mailing Address7974 Uw Health CtMiddleton, WI 53562-5531

Phone(608) 263-8100

Fax(608) 262-6247

Sole ProprietorNo

Medical School CMSIndiana University School Of MedicineGraduated 2014

Enumeration DateMarch 25, 2014

Last NPPES UpdateMay 27, 20256 updates tracked since enumeration

NPPES CertifiedMay 27, 2025

✔ NPI 1356768683 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

Licenses✔ Licensed in WI · 81042✔ Licensed in IN · 01086496A✔ Licensed in AK · 143984

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.

Also ListedAnesthesiology · Pain MedicineTaxonomy 207LP2900X · License 81042 (WI)

600 HIGHLAND AVE, Madison, WI 53792

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Secondary Practice Locations 2

Location 110525 W 124th AveCedar Lake, IN 46303-9275 · Phone (219) 805-1484

Location 25165 McCarty LnLafayette, IN 47905-8764 · Phone (765) 448-8000 · Fax (765) 446-4695

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Group Health Cooperative-SCW.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ryan Joseph Longfellow Md 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 ID1557586542

PECOS Enrollment IDI20221102002992

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.

Areas of Expertise CMS Part B claims 4

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.

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

32 services32 patients

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.

24 services23 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

18 services18 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

13 services13 patients

Hospital Affiliations CMS Care Compare

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

University Of Wi Hospitals & Clinics Authority

Acute Care Hospitals · Madison, WI

4/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number520098

Location600 Highland AvenueMadison, WI 53792 · Dane County

Emergency services

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.

JASON ALAN CHRISTENSEN PHARMD

Pharmacist

600 HIGHLAND AVE, COMPLIANCE MAIL CODE 2433
MADISON, WI 53792

Dane County (608) 662-0817

LAURA JEAN KOPPLIN MD, PHD

Ophthalmology