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JAMES JOHNSEN
NPI 1871503540
Nurse Anesthetist, Certified Registered in Springfield, MO

Active since August 08, 2006Accepts Medicare Assignment
1000 E PRIMROSE ST, SUITE 520, SPRINGFIELD, MO 65807(417) 269-4550 Get Directions Write a Review

NPPES record last updated: July 7, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About James Johnsen NPPES

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

JAMES JOHNSEN (NPI 1871503540) is an individual nurse anesthetist, certified registered in Springfield, Missouri, licensed in Missouri (074650) and active in the NPI registry since August 2006. He is affiliated with Mercy Hospital Springfield, maintains a secondary practice location in Lamar, and is a graduate of Other (2002).

NPPES Registry Identity

NPI1871503540
Entity TypeIndividualMale
Primary Taxonomy367500000X
Provider Legal NameJAMES JOHNSEN
Location Address1000 E PRIMROSE ST, SUITE 520Springfield, MO 65807-5154
Mailing Address1000 E Primrose St, Suite 520Springfield, MO 65807-5154 · (417) 269-4550
Phone(417) 269-4550
Sole ProprietorNo
Medical School CMSOtherGraduated 2002
Enumeration DateAugust 8, 2006
Last NPPES UpdateJuly 7, 2022
NPPES CertifiedJuly 7, 2022
✔ NPI 1871503540 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 MO · 074650
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.
1000 E PRIMROSE ST, Springfield, MO 65807
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Secondary Practice Location 1

Location 129 NW 1st LnLaMar, MO 64759-8105 · Phone (417) 681-5284

Other Identifiers 1

Medicaid910898402MO

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

James Johnsen 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 ID9931205945
PECOS Enrollment IDI20070509000023

Medicare Billing Reassignments

5

Medicare enrollment records show James Johnsen reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ozark Anesthesia Associates, Inc.
Same address
Anesthesiology
1000 E PRIMROSE ST STE 520
Springfield, MO 65807
  • Reassigned Medicare billing, Missouri enrollment
  • 105 clinicians in this Medicare group
NPI 1831109586 (417) 269-4550
Mercy Clinic Springfield Communities
0.7 mi
Family Medicine
3231 S NATIONAL AVE STE 220
Springfield, MO 65807
  • Reassigned Medicare billing, Missouri enrollment
  • 1,487 clinicians in this Medicare group
NPI 1245277631 (855) 420-7900
Cox-Monett Hospital, Inc.
40 mi
Critical Access
1000 E HIGHWAY 60
Monett, MO 65708
  • Reassigned Medicare billing, Missouri enrollment
  • Also billed through NPI 1669687125 (Missouri)
  • 163 clinicians in this Medicare group
NPI 1194757500 (417) 235-3144
Cox Barton County Hospital
61 mi
Rural Health
29 NW 1ST LN
Lamar, MO 64759
  • Reassigned Medicare billing, Missouri enrollment
  • 90 clinicians in this Medicare group
NPI 1255847745 (417) 681-5284
Capital Anesthesia Solutions Of Missouri LLC
159 mi
Anesthesiology
3100 OAK GROVE RD
Rombauer, MO 63901
  • Reassigned Medicare billing, Missouri enrollment
  • 217 clinicians in this Medicare group
NPI 1770185472 (239) 610-0775

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 2

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.
23 services23 patients
Anesthesia for insertion of permanent heart pacemaker 00530
Anesthesia for a permanent heart pacemaker insertion helps to ensure comfort and calmness during the procedure. It's typically a local anesthetic, numbing the area where the pacemaker is inserted. Sedation may also be given to help you relax. You'll be awake, but may not remember the procedure.
12 services12 patients

Hospital Affiliations CMS Care Compare

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

Mercy Hospital Springfield

Acute Care Hospitals · Springfield, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260065
Location1235 E CherokeeSpringfield, MO 65804 · Greene County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 65807 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
$121.96 typical visit price
range $52.28 – $161.24
Typical copayment $30.49 (range $13.07 – $40.31)
Most-billed visit code 99204
Established Patient
$65.71 typical visit price
range $16.30 – $131.05
Typical copayment $16.42 (range $4.07 – $32.76)
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.

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.

ZANE TRANMER PA-C
Physician Assistant (Medical)
1000 E PRIMROSE ST
SPRINGFIELD, MO 65807
Greene County (417) 269-6000
TAYLOR G HARRIS AA-C
Anesthesiologist Assistant
1000 E PRIMROSE ST
SPRINGFIELD, MO 65807
Greene County (417) 269-4550
WILBUR WHEELOCK
Nurse Anesthetist, Certified Registered
1000 E PRIMROSE ST, SUITE 520
SPRINGFIELD, MO 65807
Greene County (417) 269-4550
CLIFFORD DEAN OSTEN
Nurse Anesthetist, Certified Registered
1000 E PRIMROSE ST, SUITE 520
SPRINGFIELD, MO 65807
Greene County (417) 269-4550
DR. BRIAN D WILLIAMS MD
Family Medicine
1000 E PRIMROSE ST
SPRINGFIELD, MO 65807
Greene County (417) 269-9812
DR. THOMAS M. SHULTZ M.D.
Obstetrics & Gynecology
1000 E PRIMROSE ST, SUITE 270
SPRINGFIELD, MO 65807
Greene County (417) 882-6900
ERIN RENEE LOUTZENHISER M.D.
Family Medicine
1000 E PRIMROSE ST, STE 170
SPRINGFIELD, MO 65807
Greene County (417) 269-9812
DR. DOUGLASS D. COLLINS MD
Pediatrics
1000 E PRIMROSE ST, SUITE 560
SPRINGFIELD, MO 65807
Greene County (417) 882-9747

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 James Johnsen's NPI number?

The NPI number for James Johnsen is 1871503540. It was assigned to this individual provider in the NPPES registry on August 8, 2006.

Where is James Johnsen located?

James Johnsen practices at 1000 E Primrose St Suite 520, Springfield, MO 65807. The listed phone number is (417) 269-4550.

What is James Johnsen's specialty?

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

Is James Johnsen enrolled in Medicare?

Yes. James Johnsen 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 James Johnsen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Johnsen reassigns Medicare benefits to 5 organizations: Ozark Anesthesia Associates, Inc. (Springfield, MO), Mercy Clinic Springfield Communities (Springfield, MO), Cox-Monett Hospital, Inc. (Monett, MO), Cox Barton County Hospital (Lamar, MO) and Capital Anesthesia Solutions Of Missouri LLC (Rombauer, MO). 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 James Johnsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is James Johnsen affiliated with any hospitals?

According to CMS data, James Johnsen is affiliated with Mercy Hospital Springfield.

When was this NPI record last updated?

The NPPES record for James Johnsen was last updated on July 7, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.