Nathaniel Roysden, M.D.
NPI 1598129215 · Psychiatry Physician · Denver, CO
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathaniel Roysden, M.D. is a Psychiatry Physician provider in Denver, CO (NPI 1598129215).
Provider details
- NPI number
- 1598129215
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sertraline Hcl | 101 | 28 |
| Escitalopram Oxalate | 84 | 24 |
| Trazodone Hcl | 77 | 23 |
| Bupropion Hclbrand: Bupropion Xl | 74 | 22 |
| Fluoxetine Hcl | 73 | 21 |
| Lorazepam | 55 | — |
| Aripiprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-04-08
- Last updated
- 2021-06-21
- Certified
- 2021-06-21
Frequently asked questions
- What is Nathaniel Roysden's NPI number?
- Nathaniel Roysden's National Provider Identifier (NPI) is 1598129215, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathaniel Roysden's specialty?
- Nathaniel Roysden is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Nathaniel Roysden located?
- Nathaniel Roysden's practice location on file with NPPES is 10350 E Dakota Ave Ste B, Denver, CO 80247-1314.
- What is Nathaniel Roysden's phone number?
- The practice phone number listed in the NPPES registry for Nathaniel Roysden is (303) 338-4545.
- Does Nathaniel Roysden accept Medicare?
- Nathaniel Roysden is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathaniel Roysden's NPI active?
- Yes — Nathaniel Roysden's NPI (1598129215) is active in the NPPES registry as of the last update on 2021-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.