John Dahunsi, DNP
NPI 1386378735 · Psychiatric/Mental Health Nurse Practitioner · Olney, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Dahunsi, DNP is a Psychiatric/Mental Health Nurse Practitioner provider in Olney, MD (NPI 1386378735).
Provider details
- NPI number
- 1386378735
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP
- Sex
- Male
- Sole proprietor
- No
- License
- R201599 (MD)
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
3 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
542 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) |
|---|---|---|
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 270 | $65 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 167 | $84 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 105 | $118 |
Typical Medicare-allowed amounts for these services range $65–$118 (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 · 19 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Sertraline Hcl | 31 |
| Escitalopram Oxalate | 25 |
| Bupropion Hclbrand: Bupropion Xl | 25 |
| Duloxetine Hcl | 24 |
| Hydroxyzine Hcl | 24 |
| Gabapentin | 23 |
| Fluoxetine Hcl | 22 |
| Alprazolam | 22 |
| Dextroamphetamine/Amphetamine |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,276 across 54 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
Additional practice locations (3)
- 1003 W 7th St Ste 200Frederick, MD 21701-4106Phone: (301) 245-6300
- 7474 Greenway Center Dr Ste 202Greenbelt, MD 20770-3504Phone: (240) 304-6071Fax: (845) 231-6078
- 3460 Olney Laytonsville Rd Ste 212Olney, MD 20832-3701Phone: (301) 982-3437
Registry dates
- Enumerated
- 2022-07-12
- Last updated
- 2023-07-10
- Certified
- 2023-07-10
Frequently asked questions
- What is John Dahunsi's NPI number?
- John Dahunsi's National Provider Identifier (NPI) is 1386378735, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Dahunsi's specialty?
- John Dahunsi is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Dahunsi located?
- John Dahunsi's practice location on file with NPPES is 17709 Queen Elizabeth Dr, Olney, MD 20832-2137.
- What is John Dahunsi's phone number?
- The practice phone number listed in the NPPES registry for John Dahunsi is (301) 305-9738.
- Does John Dahunsi accept Medicare?
- John Dahunsi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Dahunsi's NPI active?
- Yes — John Dahunsi's NPI (1386378735) is active in the NPPES registry as of the last update on 2023-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.