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LOUIS NITSOS
NPI 1043392475
Anesthesiology in Arroyo Grande, CA

Active since October 19, 2006PECOS EnrolledAccepts Medicare Assignment
77.5/100
CMS Quality Rating
105 RODEO DR, UPMC EAST, ARROYO GRANDE, CA 93420(404) 901-4305 Get Directions Write a Review

NPPES record last updated: June 15, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 15, 2021, May 26, 2021 (2 updates tracked since 2021).

About Louis Nitsos NPPES

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

LOUIS NITSOS (NPI 1043392475) is an individual anesthesiology provider in Arroyo Grande, California, licensed in Pennsylvania (MD447904) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Penn Highlands Dubois, and is a graduate of Other (1991).

NPPES Registry Identity

NPI1043392475
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameLOUIS NITSOS
Location Address105 RODEO DR, UPMC EASTArroyo Grande, CA 93420-2670
Mailing Address105 Rodeo Dr, Upmc EastArroyo Grande, CA 93420-2670
Phone(404) 901-4305
Sole ProprietorNo
Medical School CMSOtherGraduated 1991
Enumeration DateOctober 19, 2006
Last NPPES UpdateJune 15, 20212 updates tracked since enumeration
✔ NPI 1043392475 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in PA · MD447904
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.
105 RODEO DR, Arroyo Grande, CA 93420
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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

Louis Nitsos 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 ID2567481757
PECOS Enrollment IDI20140131000563
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

8

Medicare enrollment records show Louis Nitsos reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of Pittsburgh Physicians
2,200 mi
Neurological Surgery
425 W FIFTH ST, EAST LIVERPOOL CITY HOSPITAL
East Liverpool, OH 43920
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 7,114 clinicians in this Medicare group
NPI 1811945793 (330) 386-3195
St Vincent Medical Education And Research Institute Inc
2,222 mi
Internal Medicine
2314 SASSAFRAS ST, 2ND FLOOR - ADMIN OFFICE
Erie, PA 16502
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 483 clinicians in this Medicare group
NPI 1902881477 (814) 452-5043
Brookville Hospital
2,276 mi
Multi-Specialty
88 HOSPITAL RD
Brookville, PA 15825
  • Reassigned Medicare billing, Pennsylvania enrollment
  • Also billed through NPI 1861556193 (Pennsylvania)
  • 122 clinicians in this Medicare group
NPI 1629697925 (814) 849-2312
Dubois Regional Medical Center
2,293 mi
Anesthesiology
100 HOSPITAL AVE
Du Bois, PA 15801
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 61 clinicians in this Medicare group
NPI 1447357843 (814) 371-2200
Elk Regional Health Center
2,301 mi
Anesthesiology
763 JOHNSONBURG RD
Saint Marys, PA 15857
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 57 clinicians in this Medicare group
NPI 1326427196 (800) 446-5090
Tyrone Hospital
2,322 mi
Critical Access
187 HOSPITAL DR
Tyrone, PA 16686
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 106 clinicians in this Medicare group
NPI 1659472447 (814) 684-1255
J C Blair Memorial Hospital
2,335 mi
General Acute Care Hospital
1225 WARM SPRINGS AVE
Huntingdon, PA 16652
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 124 clinicians in this Medicare group
NPI 1790996445 (814) 643-2290
Gulfstream Anesthesia Consultants PA
2,392 mi
Anesthesiology
275 GUTHRIE DR
Troy, PA 16947
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 76 clinicians in this Medicare group
NPI 1992713242 (877) 204-4155

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 lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
44 services37 patients
Anesthesia for procedure for total knee joint replacement 01402
Anesthesia for a total knee joint replacement numbs your body to eliminate pain during surgery. This could be general anesthesia where you're unconscious, or regional anesthesia where only the leg is numb. It's administered by a specialist, ensuring safety and comfort.
32 services32 patients
Anesthesia for other procedure on urinary system through urethra 00910
Anesthesia for a procedure on the urinary system through the urethra involves using medicine to numb sensation in the area. This is done to ensure you feel no pain or discomfort during the procedure. The medicine can be given locally, regionally, or generally, depending on the specifics of your procedure.
24 services23 patients
Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter 64448
This procedure involves the slow, steady delivery of a medication into your thigh nerve. An anesthetic agent or steroid is used to manage pain or inflammation. It's a safe, effective way to deliver medication directly to the area that needs it.
16 services16 patients
Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 64447
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.
14 services14 patients

Hospital Affiliations CMS Care Compare 2

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

Penn Highlands Dubois

Acute Care Hospitals · Dubois, PA
2/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number390086
Location100 Hospital AvenueDubois, PA 15801 · Clearfield County

Penn Highlands Elk

Critical Access Hospitals · Saint Marys, PA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number391315
Location763 Johnsonburg RoadSaint Marys, PA 15857 · Elk 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.

77.5/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality68.61
Promoting Interoperability100
Improvement Activities40
Cost56.4

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 Louis Nitsos's NPI number?

The NPI number for Louis Nitsos is 1043392475. It was assigned to this individual provider in the NPPES registry on October 19, 2006.

Where is Louis Nitsos located?

Louis Nitsos practices at 105 Rodeo Dr Upmc East, Arroyo Grande, CA 93420. The listed phone number is (404) 901-4305.

What is Louis Nitsos's specialty?

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

Is Louis Nitsos enrolled in Medicare?

Yes. Louis Nitsos 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 Louis Nitsos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Louis Nitsos reassigns Medicare benefits to 8 organizations: University Of Pittsburgh Physicians (East Liverpool, OH), St Vincent Medical Education And Research Institute Inc (Erie, PA), Brookville Hospital (Brookville, PA), Dubois Regional Medical Center (Du Bois, PA), Elk Regional Health Center (Saint Marys, PA) and 3 more organizations, listed in the Medicare section above. 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 Louis Nitsos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Louis Nitsos affiliated with any hospitals?

According to CMS data, Louis Nitsos is affiliated with Penn Highlands Dubois and Penn Highlands Elk.

When was this NPI record last updated?

The NPPES record for Louis Nitsos was last updated on June 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.