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MR. CHAD MICHAEL RISTAU
NPI 1013187558
Nurse Anesthetist, Certified Registered in Warren, PA

Active since March 11, 2008Accepts Medicare Assignment
2 CRESCENT PARK WEST., WARREN GENERAL HOSPITAL, WARREN, PA 16365(814) 723-3300 Get Directions Write a Review

NPPES record last updated: March 11, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mr. Chad Michael Ristau NPPES

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

MR. CHAD MICHAEL RISTAU (NPI 1013187558) is an individual nurse anesthetist, certified registered in Warren, Pennsylvania, licensed in Pennsylvania (RN528488L) and active in the NPI registry since March 2008. He is affiliated with Upmc Hamot and is a graduate of Other (2008).

NPPES Registry Identity

NPI1013187558
Entity TypeIndividualMale
Primary Taxonomy367500000X
Provider Legal NameMR. CHAD MICHAEL RISTAU
Location Address2 CRESCENT PARK WEST., WARREN GENERAL HOSPITALWarren, PA 16365
Mailing Address1746 Kuntz RdErie, PA 16509-2642 · (814) 866-2684
Phone(814) 723-3300
Sole ProprietorYes
Medical School CMSOtherGraduated 2008
Enumeration DateMarch 11, 2008
✔ NPI 1013187558 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
License✔ Licensed in PA · RN528488L
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
2 CRESCENT PARK WEST., Warren, PA 16365
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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

Mr. Chad Michael Ristau 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 ID2264590389
PECOS Enrollment IDI20081018000097

Medicare Billing Reassignments

4

Medicare enrollment records show Chad Ristau reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Warren Pain Clinic And Acupuncture Center, PC
1.5 mi
Pain Medicine
103 WEST ST. CLAIR STREET, SUITE 2C
Warren, PA 16365
  • Reassigned Medicare billing, New York enrollment
  • 4 clinicians in this Medicare group
NPI 1255352241 (814) 726-7365
Anesthesia Patient Services Of Pennsylvania LLC
307 mi
Anesthesiology
1305 WALT WHITMAN RD STE 300
Melville, NY 11747
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 45 clinicians in this Medicare group
NPI 1659752921 (516) 945-3000
North American Partners In Anesthesia, Pennsylvania , LLC
307 mi
Anesthesiology
1305 WALT WHITMAN RD STE 300
Melville, NY 11747
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 928 clinicians in this Medicare group
NPI 1639137854 (516) 946-3000
Premier Anesthesia Of New York, P.C.
307 mi
Anesthesiology
2233 STATE ROUTE 86
Saranac Lake, NY 12983
  • Reassigned Medicare billing, New York enrollment
  • 248 clinicians in this Medicare group
NPI 1063658961 (770) 643-5501

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 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.
95 services94 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.
39 services37 patients
Anesthesia for procedure on small and large bowel using an endoscope 00813
Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.
33 services33 patients
Anesthesia for exam of colon using an endoscope 00812
Anesthesia for a colon examination with an endoscope is a method used to ensure comfort during the procedure. It involves administering medication to help you relax or sleep, thus reducing discomfort as the endoscope, a thin, flexible tube, is navigated through your colon.
25 services25 patients
Anesthesia for other procedure on neck area (1 year or older) 00320
Anesthesia for a procedure on the neck area is a medical service provided to ensure you remain comfortable and pain-free during the operation. It involves administering medication to numb the neck region or to induce sleep. The method chosen depends on the specific procedure and your overall health.
15 services15 patients

Hospital Affiliations CMS Care Compare

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

Upmc Hamot

Acute Care Hospitals · Erie, PA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390063
Location201 State StreetErie, PA 16550 · Erie County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 16365 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
$126.34 typical visit price
range $54.64 – $166.87
Typical copayment $31.58 (range $13.66 – $41.71)
Most-billed visit code 99204
Established Patient
$68.36 typical visit price
range $17.33 – $135.84
Typical copayment $17.09 (range $4.33 – $33.96)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Pre-operative OSA assessment
Percentage of patients who undergo a surgical procedure in the operating room/procedure room that have a pre-operative assessment for Obstructive Sleep Apnea (OSA)
100%1,616 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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 Chad Ristau's NPI number?

The NPI number for Chad Ristau is 1013187558. It was assigned to this individual provider in the NPPES registry on March 11, 2008.

Where is Chad Ristau located?

Chad Ristau practices at 2 Crescent Park West. Warren General Hospital, Warren, PA 16365. The listed phone number is (814) 723-3300.

What is Chad Ristau's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Chad Ristau enrolled in Medicare?

Yes. Chad Ristau 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 Chad Ristau's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Chad Ristau reassigns Medicare benefits to 4 organizations: Warren Pain Clinic And Acupuncture Center, PC (Warren, PA), Anesthesia Patient Services Of Pennsylvania LLC (Melville, NY), North American Partners In Anesthesia, Pennsylvania , LLC (Melville, NY) and Premier Anesthesia Of New York, P.C. (Saranac Lake, NY). 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 Chad Ristau's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Chad Ristau affiliated with any hospitals?

According to CMS data, Chad Ristau is affiliated with Upmc Hamot.

When was this NPI record last updated?

The NPPES record for Chad Ristau was last updated on March 11, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.