2026 NPPES data Surgery Physician NPI 1508210709 M.D.
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NATHANIEL KAAN, M.D.

Surgery Physician in CHEYENNE, Wyoming. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
47
Medicare Part D claims · 28 beneficiaries · Surgery Physician avg: 169
What the federal data reveals: NATHANIEL KAAN, M.D. is a Surgery Physician ([object Object]) practicing in CHEYENNE, Wyoming with a Medicare Part D prescribing footprint of 47 claims across 28 beneficiaries .

What stands out: NATHANIEL KAAN, M.D. filed 47 Medicare Part D claims in 2023 across CHEYENNE, Wyoming. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

NATHANIEL KAAN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

NATHANIEL KAAN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 04/14/2016

NPI 1508210709

Primary specialty

Surgery Physician

Mid-sized

36,191 US NPIs in this specialty

Medicare Part D claims

47 72% vs specialty avg

2023 prescription claims

Specialty avg: 169

Specialty distribution in Wyoming

How Surgery Physician compares to other specialties among Wyoming providers

Wyoming providers

Surgery Physician share within Wyoming

1. Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Surgery Physician share within Wyoming

Specialty board-certification context

Estimated specialty board-certified rate — Surgery Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Surgery Physician ABMS/AOA estimate

Est. board-certified rate (Surgery Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Surgery Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

NATHANIEL KAAN, M.D. is a Surgery Physician provider practicing in CHEYENNE, Wyoming, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1508210709. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

NATHANIEL KAAN, M.D. appears in the CMS NPPES registry as a Surgery Physician provider holding M.D. credentials at 4003 RAWLINS ST, CHEYENNE, WY, 82001, with a listed phone of (307) 323-2679. NPI 1508210709 was issued on 04/14/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KAAN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 47 prescription claims written by this provider, covering 28 Medicare beneficiaries and totaling roughly $796 in drug spend, with an opioid prescribing rate of 36.2%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Surgery Physician is a mid-sized specialty nationwide, with 36,191 enrolled providers across 56 states and an average of 169 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

4003 RAWLINS ST
CHEYENNE, WY 82001

Provider Details

NPI 1508210709
Specialty Surgery Physician
Credentials M.D.
Gender Male
NPI Issued 04/14/2016

Hospital and facility affiliations

Facilities where NATHANIEL KAAN, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

MOUNTAIN WEST SURGICAL SPECIALISTS LLC
CHEYENNE, WY

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

47
Total Claims
$796
Total Drug Cost
28
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
49
Total Day Supply
308
Generic Drug Cost
$563
Opioid Claims
17 (36.2% rate)
Antibiotic Claims
11

Patient Demographics

Average Patient Age
70.8 years
Avg HCC Risk Score
1.10
Gender Split
39% female / 61% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Oxycodone Hcl
16

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Surgery Physician Overview

How NATHANIEL KAAN, M.D. fits within the Surgery Physician landscape nationally.

36,191
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider

NATHANIEL KAAN, M.D.'s 47 claims are below the specialty average of 169.

Nearby Surgery Physician Providers in Wyoming

Other clinicians with the same primary specialty enrolled in Wyoming, drawn from the same CMS NPPES roster as KAAN.

Compare Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is NATHANIEL KAAN, M.D.'s specialty?
NATHANIEL KAAN, M.D. specializes in Surgery Physician and practices in CHEYENNE, Wyoming. Credentials: M.D..
How much does NATHANIEL KAAN, M.D. prescribe under Medicare Part D?
In 2023, NATHANIEL KAAN, M.D. wrote 47 Medicare Part D claims totaling $796 in drug costs for 28 beneficiaries.
Where is NATHANIEL KAAN, M.D. located?
NATHANIEL KAAN, M.D. is located at 4003 RAWLINS ST, CHEYENNE, WY, 82001. Phone: (307) 323-2679.
What is NATHANIEL KAAN, M.D.'s NPI number?
NATHANIEL KAAN, M.D.'s National Provider Identifier (NPI) is 1508210709, issued on 04/14/2016.
Does NATHANIEL KAAN, M.D. prescribe opioids?
Yes, NATHANIEL KAAN, M.D. had 17 opioid claims in 2023 with an opioid prescribing rate of 36.2%.
How many Surgery Physician providers are there in the US?
There are 36,191 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
What drugs does NATHANIEL KAAN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, NATHANIEL KAAN, M.D.'s most frequently prescribed drugs include Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NATHANIEL KAAN, M.D. accept Medicare?
NATHANIEL KAAN, M.D. appears in CMS Medicare data with 47 Part D claims and 28 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NATHANIEL KAAN, M.D.'s credentials?
NATHANIEL KAAN, M.D.'s NPI is 1508210709 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology