NATHAN DOUGLAS APPLEGREN M.D.
NPI 1023679651
Anesthesiology in Greenwood Village, CO

Q: What is Nathan Applegren's NPI number?

The NPI number for Nathan Applegren is 1023679651. It was assigned to this individual provider in the NPPES registry on June 25, 2019.

Q: What is Nathan Applegren'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 Nathan Applegren was last updated on December 20, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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 June 25, 2019PECOS EnrolledAccepts Medicare Assignment

8000 E MAPLEWOOD AVE STE 120, GREENWOOD VILLAGE, CO 80111(303) 438-3999(720) 439-9500 Get Directions Write a Review

NPPES record last updated: December 20, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Nathan Douglas Applegren M.d. NPPES

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

NATHAN DOUGLAS APPLEGREN M.D. (NPI 1023679651) is an individual anesthesiology provider in Greenwood Village, Colorado, licensed in Colorado (DR.0072046) and active in the NPI registry since June 2019. He is enrolled in Medicare PECOS, maintains a secondary practice location in Columbia, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1023679651

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameNATHAN DOUGLAS APPLEGRENCredential: M.D.

Location Address8000 E MAPLEWOOD AVE STE 120Greenwood Village, CO 80111-4766

Mailing AddressPo Box 840862Dallas, TX 75284-0862 · (303) 377-7638 · Fax (303) 780-0787

Phone(303) 438-3999

Fax(720) 439-9500

Sole ProprietorNo

Medical School CMSOtherGraduated 2019

Enumeration DateJune 25, 2019

Last NPPES UpdateDecember 20, 2023

NPPES CertifiedDecember 20, 2023

✔ NPI 1023679651 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

Licenses✔ Licensed in CO · DR.0072046✔ Licensed in MO · 2019022908

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.

8000 E MAPLEWOOD AVE STE 120, Greenwood Village, CO 80111

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Secondary Practice Location 1

Location 11 Hospital DrColumbia, MO 65201-5276 · Phone (573) 882-9522

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

Nathan Douglas Applegren 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 ID5294069787

PECOS Enrollment IDI20231215002190

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 Reassignment

Medicare enrollment records show Nathan Applegren reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Us Anesthesia Partners Of Colorado Inc.

Same address

Anesthesiology

8000 E MAPLEWOOD AVE STE 120
Greenwood Village, CO 80111

Reassigned Medicare billing, Colorado enrollment
971 clinicians in this Medicare group

NPI 1922365782 (303) 438-3999

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 8

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 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.

31 services31 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.

26 services26 patients

Anesthesia for total hip replacement 01214

Anesthesia for total hip replacement is a medical service where medication is given to eliminate pain during surgery. Two types are commonly used: general anesthesia, making you unconscious, or spinal anesthesia, numbing the lower body. The choice depends on your health and your doctor's recommendation.

17 services17 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.

17 services17 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.

15 services15 patients

Ultrasonic guidance for needle placement 76942

Ultrasonic guidance for needle placement is a technique where sound waves create images that help accurately position the needle during procedures. This method ensures precision, minimizes discomfort, and increases safety.

14 services14 patients

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.

JENNIFER K KROGH CRNA

Nurse Anesthetist, Certified Registered