DR. GRANT ADAM DOORNBOS M.D.
NPI 1376785600
Anesthesiology in Kennesaw, GA

Q: What is Grant Doornbos's NPI number?

The NPI number for Grant Doornbos is 1376785600. It was assigned to this individual provider in the NPPES registry on April 1, 2009.

Q: What is Grant Doornbos'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 Grant Doornbos was last updated on March 28, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since April 01, 2009PECOS Enrolled

1300 RIDENOUR BLVD NW STE 300, KENNESAW, GA 30152(770) 702-1806 Get Directions Write a Review

NPPES record last updated: March 28, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 28, 2018, Mar 17, 2018, Nov 15, 2017 and 1 more (4 updates tracked since 2017).

On this page

About Dr. Grant Adam Doornbos M.d. NPPES

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

DR. GRANT ADAM DOORNBOS M.D. (NPI 1376785600) is an individual anesthesiology provider in Kennesaw, Georgia, licensed in Georgia (069398) and active in the NPI registry since April 2009. He is enrolled in Medicare PECOS, is affiliated with Wellstar Cobb Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1376785600

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameDR. GRANT ADAM DOORNBOSCredential: M.D.

Location Address1300 RIDENOUR BLVD NW STE 300Kennesaw, GA 30152-4402

Mailing Address3804 Glengarry Way NeRoswell, GA 30075-2615 · (404) 245-3687

Phone(770) 702-1806

Sole ProprietorNo

Medical School CMSOtherGraduated 2009

Enumeration DateApril 1, 2009

Last NPPES UpdateMarch 28, 20184 updates tracked since enumeration

✔ NPI 1376785600 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in GA · 069398

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.

1300 RIDENOUR BLVD NW STE 300, Kennesaw, GA 30152

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Secondary Practice Locations 2

Location 12595 Ridgewood Terrace NWAtlanta, GA 30318 · Phone (404) 245-3687

Location 24441 Atlanta Rd SESmyrna, GA 30080-6406 · Phone (770) 702-1806 ext. 210 · Fax (770) 693-0810

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Grant Adam Doornbos M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7214177328

PECOS Enrollment IDI20130715000334

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

Medicare enrollment records show Grant Doornbos reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mak Anesthesia Holdings LLC

Same address

Anesthesiology

1300 RIDENOUR BLVD NW STE 300
Kennesaw, GA 30152

Reassigned Medicare billing, Georgia enrollment
629 clinicians in this Medicare group

NPI 1912452939 (770) 702-1806

Fortis Health, LLC

32 mi

Anesthesiology

1266 HIGHWAY 515 S
Jasper, GA 30143

Reassigned Medicare billing, Georgia enrollment
32 clinicians in this Medicare group

NPI 1659960276 (770) 702-1806

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 4

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 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

Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) 64415

This procedure involves injecting a numbing agent or steroid into your arm's nerve bundle. It's done to manage pain or inflammation. The injection helps block nerve signals that cause discomfort, providing relief. It's a safe, common procedure.

19 services19 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

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

Hospital Affiliations CMS Care Compare

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

Wellstar Cobb Medical Center

Acute Care Hospitals · Austell, GA

2/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number110143

Location3950 Austell RdAustell, GA 30106 · Cobb County

Birthing friendly

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.

MELODY C BOLTON RUDI

Anesthesiologist Assistant