What is Nicholas Duff's NPI number?

Nicholas Duff's National Provider Identifier (NPI) is 1194301010, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Nicholas Duff's specialty?

Nicholas Duff is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).

Where is Nicholas Duff located?

Nicholas Duff's practice location on file with NPPES is 7100 E Belleview Ave Ste G10, Greenwood Village, CO 80111-1634.

What is Nicholas Duff's phone number?

The practice phone number listed in the NPPES registry for Nicholas Duff is (303) 745-0000.

Does Nicholas Duff accept Medicare?

Nicholas Duff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Nicholas Duff's NPI active?

Yes — Nicholas Duff's NPI (1194301010) is active in the NPPES registry as of the last update on 2024-06-14.

IndividualActiveAccepts Medicare

Nicholas Duff, MD

NPI 1194301010 · Hospitalist Physician · Greenwood Village, CO

Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Nicholas Duff, MD is a Hospitalist Physician provider in Greenwood Village, CO (NPI 1194301010).

Provider details

NPI number: 1194301010
Entity type: Individual
Primary specialty: Hospitalist PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Hospitalist PhysicianPrimary208M00000XLicense DR.0069304 (CO)
Allopathic & Osteopathic Physicians
Student in an Organized Health Care Education/Training Program390200000X
Student, Health Care
Internal Medicine Physician207R00000XLicense TL.0008725 (CO)
Allopathic & Osteopathic Physicians

Profile Score

Basic profile(48/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
5 yrs in NPPES registry
Profile completeness28% of score
83% of core fields populated
Practice footprint17% of score
2 documented practice locations
Medicare service volume (vs. specialty peers)28% of score
165 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233	100	$117
Hospital Discharge Day Management, More Than 30 Minutes99239	38	$113
Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223	27	$170

Typical Medicare-allowed amounts for these services range $113–$170 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.

Drug	Part D claims (2024)
Gabapentin	16
Apixabanbrand: Eliquis	13

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Practice location

7100 E Belleview Ave Ste G10

Greenwood Village, CO 80111-1634

Phone: (303) 745-0000

Fax: (303) 773-3675

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Mailing address