Robert Duncan, APN
NPI 1881291342 · Psychiatric/Mental Health Nurse Practitioner · Chicago, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Duncan, APN is a Psychiatric/Mental Health Nurse Practitioner provider in Chicago, IL (NPI 1881291342).
Provider details
- NPI number
- 1881291342
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN
- Sex
- Male
- Sole proprietor
- Yes
- License
- 209.022109 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
5 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,348 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 35 Minutes99232 | 1,094 | $69 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 101 | $71 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 81 | $115 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 72 | $147 |
Typical Medicare-allowed amounts for these services range $69–$147 (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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Quetiapine Fumarate | 27 | 22 |
| Trazodone Hcl | 25 | 25 |
| Gabapentin | 22 | 18 |
| Olanzapine | 16 | 14 |
| Sertraline Hcl | 16 | — |
| Aripiprazole | 15 | 14 |
| Buspirone Hcl | 13 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$122 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-10-07
- Last updated
- 2020-10-07
- Certified
- 2020-10-07
Frequently asked questions
- What is Robert Duncan's NPI number?
- Robert Duncan's National Provider Identifier (NPI) is 1881291342, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Duncan's specialty?
- Robert Duncan is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Robert Duncan located?
- Robert Duncan's practice location on file with NPPES is 1431 N Claremont Ave, Chicago, IL 60622-1702.
- What is Robert Duncan's phone number?
- The practice phone number listed in the NPPES registry for Robert Duncan is (312) 491-5498.
- Does Robert Duncan accept Medicare?
- Robert Duncan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Duncan's NPI active?
- Yes — Robert Duncan's NPI (1881291342) is active in the NPPES registry as of the last update on 2020-10-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.