RYAN JOSEPH LONGFELLOW MD
NPI 1356768683
Anesthesiology in Madison, WI

NPI Status: Active since March 25, 2014

Contact Information

600 HIGHLAND AVE
MADISON, WI
ZIP 53792
Phone: (608) 263-8100
Fax: (608) 262-6247

Get Directions Reviews

  • Individual
  • Male
  • Years of Experience 12
  • Anesthesiology
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About RYAN LONGFELLOW

This page provides the complete NPI Profile along with additional information for Ryan Longfellow, an anesthesiologist established in Madison, Wisconsin with a medical specialization in Anesthesiology and more than 12 years of experience. He graduated from Indiana University School Of Medicine in 2014. The healthcare provider is registered in the NPI registry with number 1356768683 assigned on March 2014. The practitioner's primary taxonomy code is 207L00000X with license number 81042 (WI). The provider is registered as an individual and his NPI record was last updated May 2025.

NPI
1356768683
Provider Name
RYAN JOSEPH LONGFELLOW MD
Gender
Male
Entity Type
Individual
Location Address
600 HIGHLAND AVE MADISON, WI 53792
Location Phone
(608) 263-8100
Location Fax
(608) 262-6247
Mailing Address
7974 UW HEALTH CT MIDDLETON, WI 53562
Medical School Name
INDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduation Year
2014
Is Sole Proprietor?
No
Enumeration Date
03-25-2014
Last Update Date
05-27-2025
Code Navigator

An anesthesiologist like Ryan Longfellow manages the care of surgical patients and pain relief through drug administration that reduces or eliminates pain during an operation, medical procedure or during labor and delivery of babies. During surgical procedures anesthesiologists are responsible for adjusting the amount of anesthetic, monitoring the patient's heart rate, body temperature, blood pressure and breathing.

Location Map

Secondary Locations

  • 10525 W 124th Ave
    Cedar Lake, IN 46303
    (219) 805-1484
  • 5165 McCarty Ln
    Lafayette, IN 47905
    (765) 448-8000

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Anesthesiology

Taxonomy Code
207L00000X
Type
Allopathic & Osteopathic Physicians
License No.
81042
License State
WI
Taxonomy Description
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207L00000XAllopathic & Osteopathic Physicians

Anesthesiology

01086496A (IN)
2207L00000XAllopathic & Osteopathic Physicians

Anesthesiology

143984 (AK)
3207LP2900XAllopathic & Osteopathic Physicians

Anesthesiology
Pain Medicine

81042 (WI)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Clear Silver - HMO
  • Elite Bronze - HMO
  • Elite Bronze + Vision + Adult Dental - HMO
  • Elite Gold - HMO
  • Elite Gold + Vision + Adult Dental - HMO
  • Everyday Bronze - HMO
  • Everyday Bronze + Vision + Adult Dental - HMO
  • Everyday Gold - HMO
  • Everyday Gold + Vision + Adult Dental - HMO
  • Focused Silver - HMO
  • Focused Silver + Vision + Adult Dental - HMO
  • Standard Expanded Bronze - HMO
  • Standard Expanded Bronze + Vision + Adult Dental - HMO
  • Standard Gold - HMO
  • Standard Gold + Vision + Adult Dental - HMO
  • Standard Silver - HMO
  • Standard Silver + Vision + Adult Dental - HMO
  • Choice Bronze HSA - HMO
  • Choice Bronze HSA + Vision + Adult Dental - HMO
  • Clear Gold - HMO
  • Clear Gold + Vision + Adult Dental - HMO
  • Clear Silver - HMO
  • Complete Gold - HMO
  • Complete Gold + Vision + Adult Dental - HMO
  • Complete Silver - HMO
  • Complete Silver + Vision + Adult Dental - HMO
  • Elite Gold - HMO
  • Elite Gold + Vision + Adult Dental - HMO
  • Everyday Bronze - HMO
  • Everyday Bronze + Vision + Adult Dental - HMO
  • Focused Silver - HMO
  • Focused Silver + Vision + Adult Dental - HMO
  • Standard Expanded Bronze - HMO
  • Standard Expanded Bronze + Vision + Adult Dental - HMO
  • Standard Gold - HMO
  • Standard Gold + Vision + Adult Dental - HMO
  • Standard Silver - HMO
  • Central Bronze - HMO
  • Central Bronze + Vision + Adult Dental - HMO
  • Central Gold - HMO
  • Central Gold + Vision + Adult Dental - HMO
  • Clear Silver - HMO
  • Everyday Bronze - HMO
  • Everyday Bronze + Vision + Adult Dental - HMO
  • Everyday Gold - HMO
  • Everyday Gold + Vision + Adult Dental - HMO
  • Focused Silver - HMO
  • Focused Silver + Vision + Adult Dental - HMO
  • Standard Expanded Bronze - HMO
  • Standard Expanded Bronze + Vision + Adult Dental - HMO
  • Standard Gold - HMO
  • Standard Gold + Vision + Adult Dental - HMO
  • Standard Silver - HMO
  • Standard Silver + Vision + Adult Dental - HMO
  • Anthem Bronze Preferred/Broad 5000 (3 Free PCP Visits + $0 Select Drugs + Incentives) - POS
  • Anthem Bronze Preferred/Broad HSA (+ Incentives) - POS
  • Anthem Bronze Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
  • Anthem Gold Preferred/Broad 1000 ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
  • Anthem Gold Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
  • Anthem Heart Healthy Bronze Preferred/Broad 0 Med Ded ($0 Virtual PCP+$0 Select Drugs+Incentives) - POS
  • Anthem Silver Preferred/Broad 4000 (3 Free PCP Visits + $0 Select Drugs + Incentives) - POS
  • Anthem Silver Preferred/Broad 5300 (3 Free PCP Visits + $0 Select Drugs + Incentives) - POS
  • Anthem Silver Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
  • Better Together HMO Bronze 6500 Ded/8000 MOOP - HMO
  • Better Together HMO Bronze 7500 Ded/9200 MOOP - HMO
  • Better Together HMO Bronze No Medical Ded/9200 MOOP - HMO
  • Better Together HMO Gold 1000 Ded/6000 MOOP with Vision - HMO
  • Better Together HMO Gold 1500 Ded/7800 MOOP - HMO
  • Better Together HMO Gold 2900 Ded/2900 MOOP HSA - HMO
  • Better Together HMO Platinum 500 Ded/1500 MOOP with Vision - HMO
  • Better Together HMO Platinum No Ded/2800 MOOP - HMO
  • Better Together HMO Platinum No Ded/4300 MOOP - HMO
  • Better Together HMO Silver 4100 Ded/7500 MOOP with Vision - HMO
  • Better Together HMO Silver 5000 Ded/8000 MOOP - HMO
  • Better Together HMO Silver 5500 Ded/5500 MOOP HSA - HMO
  • Partners HMO Bronze 5000 Ded/9200 MOOP - HMO
  • Partners HMO Bronze 7500 Ded/9200 MOOP - HMO
  • Partners HMO Bronze 7900 Ded/7900 MOOP HSA - HMO
  • Partners HMO Gold 1000 Ded/6000 MOOP with Vision - HMO
  • Partners HMO Gold 1500 Ded/7800 MOOP - HMO
  • Partners HMO Gold 2900 Ded/2900 MOOP HSA - HMO
  • Partners HMO Silver 4100 Ded/7500 MOOP with Vision - HMO
  • Partners HMO Silver 5000 Ded/8000 MOOP - HMO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Ryan Longfellow is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Ryan Longfellow is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 1557586542

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20221102002992

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Anesthesia for procedure to correct abnormal heart rhythm

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.

This service was performed 13 times for 13 patients

Injection of anesthetic agent and/or steroid into thigh nerve

This procedure involves injecting a numbing agent and/or steroid into a nerve in your thigh. It's done to alleviate pain or inflammation. A needle will be carefully positioned near the nerve, and the medicine will be administered.

This service was performed 11 times for 11 patients

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Ryan Longfellow is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
UNIVERSITY OF WI HOSPITALS & CLINICS AUTHORITY600 HIGHLAND AVENUE
MADISON, WI 53792
(608) 263-6400Acute Care Hospitals

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1356768683
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2310614616616
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 3 + 1 + 0 + 6 + 1 + 4 + 6 + 1 + 6 + 6 + 1 + 6 + 24 = 67
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 67 = 33

The NPI number 1356768683 is valid because the calculated check digit 3 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1073595575 PETER STIER M.D.
Individual
Emergency Medicine600 HIGHLAND AVE
MADISON, WI 53792
(608) 262-2398
1730169624 RALPH M. COLBURN MD
Individual
Radiology (Diagnostic Radiology)600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-8340
1316918758DR. A LELAND ALBRIGHT MD
Individual
Neurological Surgery600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-9651
1568434777 JOHN O FLEMING MD
Individual
Psychiatry & Neurology (Neurology)600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-5442
1851363063 JENNY P LIAO MD
Individual
Psychiatry & Neurology (Neurology)600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-5442
1629040795 JENNIFER S WINCHELL NP
Individual
Nurse Practitioner600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-7502
1265404800 LOUIS C FISCHER M.D.
Individual
Radiology (Diagnostic Radiology)600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-8340
1871566620 JOANNE K RASH PA
Individual
Physician Assistant600 HIGHLAND AVE
MADISON, WI 53792
(608) 265-1700
1346215233 TAMARA WILLMAN CRNA
Individual
Nurse Anesthetist, Certified Registered600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-8100
1184690836 PATRICIA ANN BARRETT MD
Individual
Radiology (Radiation Oncology)600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-8500
1013983527 JAMES H FITZPATRICK MD
Individual
Anesthesiology600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-8100
1508832015 MARK E SCHROEDER MD
Individual
Anesthesiology600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-8100
1700852217 KARL WILLMANN MD
Individual
Anesthesiology600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-8100
1871569384 FRANCES WIEDENHOEFT CRNA
Individual
Nurse Anesthetist, Certified Registered600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-8100
1043286560 REBECCA ANN KONKOL CRNA
Individual
Nurse Anesthetist, Certified Registered600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-8100
1700852225 THOMAS O MONSOOR CRNA
Individual
Nurse Anesthetist, Certified Registered600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-8100
1194791590 KATHRYN F FAHRENKRUG CRNA
Individual
Nurse Anesthetist, Certified Registered600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-8100
1265408660 GIUDITTA ANGELINI MD
Individual
Anesthesiology600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-8100
1255307658 GEORGE M SAVIELLO MD MBA
Individual
Anesthesiology600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-8100
1376519447 ROBERT B HOLLAND MD
Individual
Internal Medicine (Medical Oncology)600 HIGHLAND AVE
MADISON, WI 53792
(608) 263-7500

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1356768683, enumerated in the NPI registry as an "individual" on March 25, 2014

The provider is located at 600 Highland Ave Madison, Wi 53792 and the phone number is (608) 263-8100

The provider's speciality is Anesthesiology with taxonomy code 207L00000X

The provider has more than 12 years of experience. He graduated from Indiana University School Of Medicine in 2014.

The provider might be accepting Accepts: Ambetter from Meridian, Ambetter Health, Ambetter. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

The most common procedures or services performed by this practitioner are: Anesthesia for procedure to correct abnormal heart rhythm and Injection of anesthetic agent and/or steroid into thigh nerve.

The practitioner is affiliated to the following hospital(s): UNIVERSITY OF WI HOSPITALS & CLINICS AUTHORITY. Hospital affiliations are identified through self-reporting data and service claims based on the place of service.

This NPI record was last updated on March 25, 2014. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.