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DR. CHRISTOS P KESSARIS M.D.
NPI 1902929623
Anesthesiology in Phoenixville, PA

Active since April 09, 2007PECOS EnrolledAccepts Medicare Assignment
82.78/100
CMS Quality Rating
140 NUTT RD, PHOENIXVILLE, PA 19460(610) 983-1000 Get Directions Write a Review

NPPES record last updated: October 10, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 10, 2025, Mar 4, 2024, Mar 16, 2017 (3 updates tracked since 2017).

About Dr. Christos P Kessaris M.d. NPPES

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

DR. CHRISTOS P KESSARIS M.D. (NPI 1902929623) is an individual anesthesiology provider in Phoenixville, Pennsylvania, licensed in Pennsylvania (MD447075) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS, is affiliated with University Of Iowa Hospital & Clinics, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1902929623
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. CHRISTOS P KESSARISCredential: M.D.
Location Address140 NUTT RDPhoenixville, PA 19460-3906
Mailing Address701 E Marshall St Ste 350West Chester, PA 19380-4412 · (516) 945-3347 · Fax (516) 945-3131
Phone(610) 983-1000
Sole ProprietorNo
Medical School CMSOtherGraduated 1995
Enumeration DateApril 9, 2007
Last NPPES UpdateOctober 10, 20253 updates tracked since enumeration
NPPES CertifiedOctober 10, 2025
✔ NPI 1902929623 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in PA · MD447075✔ Licensed in IA · MD-55397✔ Licensed in DE · C1-0008284
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.
140 NUTT RD, Phoenixville, PA 19460
Open in Google Maps ↗

Secondary Practice Locations 3

Location 12500 Bernville RdReading, PA 19605-9453 · Phone (610) 378-2005 · Fax (610) 378-2058
Location 2200 Hawkins DrIowa City, IA 52242-1009 · Phone (319) 356-2633 · Fax (319) 356-2940
Location 3701 W Forevergreen RdNorth Liberty, IA 52317-9848 · Phone (319) 356-2633 · Fax (319) 356-2940

Other Identifiers 3

Medicaid1902929623DE
OtherP00795682DE · Railroad Medicare Ptan
Medicaid0132888NJ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company, Wellmark Health Plan of Iowa, Inc..Insurance ›

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. Christos P Kessaris 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 ID9335231786
PECOS Enrollment IDI20070815000642, I20130226000249
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 Christos Kessaris reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cep America - Anesthesia PC
19 mi
Anesthesiology
1500 LANSDOWNE AVE
Darby, PA 19023
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 140 clinicians in this Medicare group
NPI 1013807247 (610) 237-4000
Northstar Anesthesia Of Pennsylvania, LLC
19 mi
Anesthesiology
1500 LANSDOWNE AVE
Darby, PA 19023
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 400 clinicians in this Medicare group
NPI 1700218989 (610) 237-4000
Northstar Anesthesia Of Delaware, LLC
26 mi
Anesthesiology
701 N CLAYTON ST
Wilmington, DE 19805
  • Reassigned Medicare billing, Delaware enrollment
  • 178 clinicians in this Medicare group
NPI 1316544976 (214) 687-0001

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

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 x-ray or radiation therapy 01922
Anesthesia for x-ray or radiation therapy involves administering medication to help you relax or sleep during the procedure. It's used to ensure comfort, minimize movement, and reduce anxiety. The type of anesthesia used depends on the procedure and patient's health.
11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

University Of Iowa Hospital & Clinics

Acute Care Hospitals · Iowa City, IA
3/5 CMS rating
OwnershipGovernment - State
CMS Certification Number160058
Location200 Hawkins DriveIowa City, IA 52242 · Johnson County
Emergency services Birthing friendly

St Mary Medical Center

Acute Care Hospitals · Langhorne, PA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390258
LocationLanghorne-Newtown RdLanghorne, PA 19047 · Bucks County
Emergency services

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.

82.78/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality79.74
Improvement Activities40

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.

BRENDAN TANNENBAUM DO
Student in an Organized Health Care Education/Training Program
140 NUTT RD
PHOENIXVILLE, PA 19460
Chester County (610) 983-1000
DANIEL MINUKHIN DO
Student in an Organized Health Care Education/Training Program
140 NUTT RD
PHOENIXVILLE, PA 19460
Chester County (610) 983-1000
MAHESH VASUDEVAN DO
Student in an Organized Health Care Education/Training Program
140 NUTT RD
PHOENIXVILLE, PA 19460
Chester County (610) 983-1000
RAJ K. SHARMA MD
Hospitalist
140 NUTT RD
PHOENIXVILLE, PA 19460
Chester County (610) 983-1000
DR. MOHAMED MUSTAFA DARWISH MD
Internal Medicine
140 NUTT RD
PHOENIXVILLE, PA 19460
Chester County (484) 921-7311
KRISTIN M SPIEGEL MD
Student in an Organized Health Care Education/Training Program
140 NUTT RD
PHOENIXVILLE, PA 19460
Chester County (610) 983-1000
DR. AYUSHI BISARIA DPM
Podiatrist (Foot & Ankle Surgery)
140 NUTT RD
PHOENIXVILLE, PA 19460
Chester County (610) 983-1000
LISA ANNE SANTORO CRNA
Nurse Anesthetist, Certified Registered
140 NUTT RD
PHOENIXVILLE, PA 19460
Chester County (610) 983-1000

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 Christos Kessaris's NPI number?

The NPI number for Christos Kessaris is 1902929623. It was assigned to this individual provider in the NPPES registry on April 9, 2007.

Where is Christos Kessaris located?

Christos Kessaris practices at 140 Nutt Rd, Phoenixville, PA 19460. The listed phone number is (610) 983-1000.

What is Christos Kessaris's specialty?

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

Is Christos Kessaris enrolled in Medicare?

Yes. Christos Kessaris 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 Christos Kessaris's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Christos Kessaris reassigns Medicare benefits to 3 organizations: Cep America - Anesthesia PC (Darby, PA), Northstar Anesthesia Of Pennsylvania, LLC (Darby, PA) and Northstar Anesthesia Of Delaware, LLC (Wilmington, DE). 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 Christos Kessaris's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Christos Kessaris accept?

Health plans from Oscar Insurance Company and Wellmark Health Plan of Iowa, Inc. list Christos Kessaris as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Christos Kessaris affiliated with any hospitals?

According to CMS data, Christos Kessaris is affiliated with University Of Iowa Hospital & Clinics and St Mary Medical Center.

When was this NPI record last updated?

The NPPES record for Christos Kessaris was last updated on October 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.