DAVID S GRENDA MD, PHD
NPI 1336344928
Anesthesiology in Eau Claire, WI

Q: What is David Grenda's NPI number?

The NPI number for David Grenda is 1336344928. It was assigned to this individual provider in the NPPES registry on June 15, 2007.

Q: What is David Grenda'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 David Grenda was last updated on September 5, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since June 15, 2007PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

1400 BELLINGER STREET, EAU CLAIRE, WI 54703(715) 833-5222 Get Directions Write a Review

NPPES record last updated: September 5, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Sep 5, 2025, Dec 31, 2016 (2 updates tracked since 2016).

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About David S Grenda Md, Phd NPPES

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

DAVID S GRENDA MD, PHD (NPI 1336344928) is an individual anesthesiology provider in Eau Claire, Wisconsin, licensed in Wisconsin (86153-20) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS, is affiliated with Northside Hospital Forsyth, and maintains a secondary practice location in Atlanta.

NPPES Registry Identity

NPI1336344928

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameDAVID S GRENDACredential: MD, PHD

Location Address1400 BELLINGER STREETEau Claire, WI 54703-5222

Mailing AddressPo Box 860912, Provider EnrollmentMinneapolis, MN 55486-0912 · (507) 284-2511

Phone(715) 833-5222

Sole ProprietorNo

Medical School CMSOtherGraduated 2007

Enumeration DateJune 15, 2007

Last NPPES UpdateSeptember 5, 20252 updates tracked since enumeration

NPPES CertifiedSeptember 5, 2025

✔ NPI 1336344928 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 · 86153-20✔ Licensed in GA · 69909

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 · Critical Care MedicineTaxonomy 207LC0200X · License 69909 (GA)

1400 BELLINGER STREET, Eau Claire, WI 54703

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Secondary Practice Location 1

Location 11800 Howell Mill Rd NWAtlanta, GA 30318-2538 · Phone (404) 351-1745 · Fax (404) 351-7121

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

David S Grenda Md, Phd 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 ID9234379264

PECOS Enrollment IDI20130724000581, I20250919003456

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 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.

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

97 services45 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

89 services48 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.

19 services19 patients

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.

12 services12 patients

Insertion of artery tube for blood sampling or infusion through skin 36620

This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Northside Hospital Forsyth

Acute Care Hospitals · Cumming, GA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number110005

Location1200 Northside Forsyth DriveCumming, GA 30041 · Forsyth County

Birthing friendly

Piedmont Fayette Hospital

Acute Care Hospitals · Fayetteville, GA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number110215

Location1255 Highway 54 WestFayetteville, GA 30214 · Fayette County

Emergency services Birthing friendly

Piedmont Newnan Hospital, Inc

Acute Care Hospitals · Newnan, GA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number110229

Location745 Poplar RoadNewnan, GA 30265 · Coweta County

Emergency services Birthing friendly

Mayo Clinic Health System-Franciscan Medical Center Inc

Acute Care Hospitals · La Crosse, WI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520004

Location700 West Avenue SouthLa Crosse, WI 54601 · La Crosse County

Emergency services Birthing friendly

Mayo Clinic Health System Eau Claire Hospital

Acute Care Hospitals · Eau Claire, WI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520070

Location1221 Whipple StEau Claire, WI 54703 · Eau Claire County

Emergency services Birthing friendly

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.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Promoting Interoperability

100

Improvement Activities

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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.

RHIANNON C RILEY APNP

Nurse Practitioner