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DR. GREGORY A. AMBUSKE D.O.
NPI 1093920746
Internal Medicine in Colorado Springs, CO

Active since May 14, 2007PECOS EnrolledAccepts Medicare Assignment
6915 TUTT BLVD STE 110B, COLORADO SPRINGS, CO 80923(719) 445-1292(719) 591-6486 Get Directions Write a Review

NPPES record last updated: January 8, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 8, 2021, Dec 9, 2020, Jul 3, 2019 and 5 more (8 updates tracked since 2018).

About Dr. Gregory A. Ambuske D.o. NPPES

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

DR. GREGORY A. AMBUSKE D.O. (NPI 1093920746) is an individual internal medicine provider in Colorado Springs, Colorado, licensed in Colorado (DR.0056364) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS and is a graduate of Philadelphia College Of Osteopathic Medicine (2003).

NPPES Registry Identity

NPI1093920746
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. GREGORY A. AMBUSKECredential: D.O.
Location Address6915 TUTT BLVD STE 110BColorado Springs, CO 80923-3591
Mailing Address1065 Ne 125th St Ste 300North Miami, FL 33161-5833 · (888) 852-6672 · Fax (305) 891-4228
Phone(719) 445-1292
Fax(719) 591-6486
Sole ProprietorNo
Medical School CMSPhiladelphia College Of Osteopathic MedicineGraduated 2003
Enumeration DateMay 14, 2007
Last NPPES UpdateJanuary 8, 20218 updates tracked since enumeration
NPPES CertifiedJanuary 8, 2021
✔ NPI 1093920746 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in CO · DR.0056364✔ Licensed in PA · OS013889
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
6915 TUTT BLVD STE 110B, Colorado Springs, CO 80923
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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

Dr. Gregory A. Ambuske D.o. 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 ID1153429857
PECOS Enrollment IDI20170202001673
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

2

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

Salida Hospital District
66 mi
Family Medicine
20180 US HIGHWAY 50
Cotopaxi, CO 81223
  • Reassigned Medicare billing, Colorado enrollment
  • Also billed through NPI 1730258971 (Colorado)
  • 206 clinicians in this Medicare group
NPI 1295389328 (719) 530-2000
Northern Medical Associates
71 mi
Family Medicine
1420 W MIDWAY BLVD
Broomfield, CO 80020
  • Reassigned Medicare billing, Colorado enrollment
  • 6 clinicians in this Medicare group
NPI 1770507360 (303) 466-1866

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
104 services64 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
67 services48 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
57 services41 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
19 services19 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
15 services15 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
14 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80923 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
$132.55 typical visit price
range $58.06 – $174.82
Typical copayment $33.13 (range $14.51 – $43.70)
Most-billed visit code 99204
Established Patient
$102.03 typical visit price
range $18.88 – $142.79
Typical copayment $25.50 (range $4.72 – $35.69)
Most-billed visit code 99214
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 10

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AMBER BREANNE WATSON MSN, FNP-BC
Nurse Practitioner (Family)
6915 TUTT BLVD STE 110B
COLORADO SPRINGS, CO 80923
El Paso County (719) 445-1292
MR. ROBERT DAVID WHITING MSW, LCSW
Social Worker (Clinical)
6915 TUTT BLVD STE 110B
COLORADO SPRINGS, CO 80923
El Paso County (719) 445-1292
DR. KEVIN W. KILIMANN MD
Psychiatry & Neurology (Psychiatry)
6915 TUTT BLVD STE 110B
COLORADO SPRINGS, CO 80923
El Paso County (719) 445-1292
JOHN B EVANS PH.D., LCSW
Social Worker (Clinical)
6915 TUTT BLVD STE 110B
COLORADO SPRINGS, CO 80923
El Paso County (719) 445-1292
MICHAEL GORDON HERRIOTT DO
Psychiatry & Neurology (Psychiatry)
6915 TUTT BLVD STE 110B
COLORADO SPRINGS, CO 80923
El Paso County (719) 445-1292
MRS. MELODIE KAY COLLINS M.A, N.C.C
Counselor (Mental Health)
6915 TUTT BLVD STE 110B
COLORADO SPRINGS, CO 80923
El Paso County (719) 445-1292
DR. BERT EUGENE BERGLAND D.O.
Family Medicine (Adult Medicine)
6915 TUTT BLVD STE 110B
COLORADO SPRINGS, CO 80923
El Paso County (888) 852-6672
TZU HUI LEE NP
Nurse Practitioner (Psychiatric/Mental Health)
6915 TUTT BLVD STE 110B
COLORADO SPRINGS, CO 80923
El Paso County (719) 445-1292

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 Gregory Ambuske's NPI number?

The NPI number for Gregory Ambuske is 1093920746. It was assigned to this individual provider in the NPPES registry on May 14, 2007.

Where is Gregory Ambuske located?

Gregory Ambuske practices at 6915 Tutt Blvd Ste 110B, Colorado Springs, CO 80923. The listed phone number is (719) 445-1292.

What is Gregory Ambuske's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Gregory Ambuske enrolled in Medicare?

Yes. Gregory Ambuske 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 Gregory Ambuske's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Ambuske reassigns Medicare benefits to 2 organizations: Salida Hospital District (Cotopaxi, CO) and Northern Medical Associates (Broomfield, CO). 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 Gregory Ambuske's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Gregory Ambuske was last updated on January 8, 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.