1. Home
  2. Directory
  3. Wyoming
  4. Cheyenne
  5. Surgery
  6. NPI Profile

DR. NATHANIEL A KAAN M.D.
NPI 1508210709
Surgery in Cheyenne, WY

Active since April 14, 2016PECOS EnrolledAccepts Medicare Assignment
4003 RAWLINS ST, CHEYENNE, WY 82001(307) 323-2679(307) 323-2740 Get Directions Write a Review

NPPES record last updated: February 24, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Feb 24, 2025, Sep 5, 2024, Nov 8, 2022 and 1 more (4 updates tracked since 2022).

About Dr. Nathaniel A Kaan M.d. NPPES

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

DR. NATHANIEL A KAAN M.D. (NPI 1508210709) is an individual surgery provider in Cheyenne, Wyoming, licensed in Wyoming (15275A) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS, is affiliated with Cheyenne Regional Medical Center, and is a graduate of University Of Washington School Of Medicine (2016).

NPPES Registry Identity

NPI1508210709
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. NATHANIEL A KAANCredential: M.D.
Location Address4003 RAWLINS STCheyenne, WY 82001-1800
Mailing Address4003 Rawlins StCheyenne, WY 82001-1800 · (307) 323-2679 · Fax (307) 323-2740
Phone(307) 323-2679
Fax(307) 323-2740
Sole ProprietorNo
Medical School CMSUniversity Of Washington School Of MedicineGraduated 2016
Enumeration DateApril 14, 2016
Last NPPES UpdateFebruary 24, 20254 updates tracked since enumeration
NPPES CertifiedFebruary 24, 2025
✔ NPI 1508210709 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in WY · 15275A
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
4003 RAWLINS ST, Cheyenne, WY 82001
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Wyoming, Medica, UnitedHealthcare.Insurance ›

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

Dr. Nathaniel A Kaan 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 ID2264725266
PECOS Enrollment IDI20220913004219
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 11

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
87 services38 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
69 services69 patients
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.
39 services35 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
37 services35 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.
33 services27 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
28 services18 patients

Hospital Affiliations CMS Care Compare

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

Cheyenne Regional Medical Center

Acute Care Hospitals · Cheyenne, WY
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number530014
Location214 East 23rd StreetCheyenne, WY 82001 · Laramie County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 82001 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
$87.12 typical visit price
range $56.42 – $170.72
Typical copayment $21.78 (range $14.10 – $42.68)
Most-billed visit code 99203
Established Patient
$70.32 typical visit price
range $18.19 – $139.32
Typical copayment $17.58 (range $4.54 – $34.83)
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 5

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

MONTANNA LEE MERRICK PA-C
Physician Assistant (Surgical)
4003 RAWLINS ST
CHEYENNE, WY 82001
Laramie County (307) 632-1114
MOUNTAIN WEST SURGICAL SPECIALISTS LLC
Surgery (Trauma Surgery)
4003 RAWLINS ST
CHEYENNE, WY 82001
Laramie County (307) 323-2679
DR. SHERIEDAN ELIZABETH GRANNAN FNP-C
Nurse Practitioner (Family)
4003 RAWLINS ST
CHEYENNE, WY 82001
Laramie County (307) 638-8975
JEREMY D GATES MD
Surgery
4003 RAWLINS ST
CHEYENNE, WY 82001
Laramie County (307) 323-2679
MRS. JILL E. GIRANY FNP-C
Nurse Practitioner (Family)
4003 RAWLINS ST
CHEYENNE, WA 82001
Laramie County (307) 638-8975

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 Nathaniel Kaan's NPI number?

The NPI number for Nathaniel Kaan is 1508210709. It was assigned to this individual provider in the NPPES registry on April 14, 2016.

Where is Nathaniel Kaan located?

Nathaniel Kaan practices at 4003 Rawlins St, Cheyenne, WY 82001. The listed phone number is (307) 323-2679.

What is Nathaniel Kaan's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Nathaniel Kaan enrolled in Medicare?

Yes. Nathaniel Kaan 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.

What insurance does Nathaniel Kaan accept?

Health plans from Blue Cross Blue Shield of Wyoming, Medica and UnitedHealthcare list Nathaniel Kaan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Nathaniel Kaan affiliated with any hospitals?

According to CMS data, Nathaniel Kaan is affiliated with Cheyenne Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Nathaniel Kaan was last updated on February 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.