Provider Profile
Joseph A. Obasanya, FNP
Unclaimed ProfileAbout Joseph Obasanya
Joseph A. Obasanya, FNP is a nurse practitioner based in Wilmington, DE. Joseph is also listed as specializing in nurse practitioner — psychiatric/mental health. According to Medicare claims data, Joseph cared for 655 Medicare patients across 1,761 services. The services billed most often include subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes, chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month, and chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month. The provider's National Provider Identifier (NPI) is 1770095788.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (302) 463-8438
- Email not available
Practice Locations
1601 MILLTOWN RD STE 2
Wilmington, DE 19808
2409 Baikal Loop
Upper Marlboro, MD 20774
Procedures Most Often Billed to Medicare
1,761 services · 655 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
940 | More often than most peers in Nurse Practitioner |
| Chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month | Office visit | 99491 |
315 | Too few peers to compare |
| Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | Office visit | 99490 |
136 | As often as other peers in Nurse Practitioner |
| Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | Office visit | 99310 |
136 | More often than most peers in Nurse Practitioner |
| Nursing facility discharge management, more than 30 minutes | Office visit | 99316 |
85 | More often than most peers in Nurse Practitioner |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
74 | As often as other peers in Nurse Practitioner |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
48 | More often than most peers in Nurse Practitioner |
| Chronic care management services for two or more chronic conditions, additional 30 minutes provided personally by health care professional, per calendar month | Office visit | 99437 |
27 | Too few peers to compare |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other nurse practitioners at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 3 groups
Other nurse practitioners in Wilmington 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2025 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Joseph A. Obasanya specialize in?
Joseph A. Obasanya is a nurse practitioner in Wilmington, DE. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Joseph A. Obasanya located?
Joseph A. Obasanya is listed at 1601 Milltown Rd Ste 2, Wilmington, DE 19808. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Joseph A. Obasanya's phone number?
The number on file is (302) 463-8438. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Joseph A. Obasanya's NPI number?
Joseph A. Obasanya's National Provider Identifier is 1770095788. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Joseph A. Obasanya train?
Joseph A. Obasanya attended Other, graduating in 2025. This comes from the CMS National Downloadable File.
CMS public data
How long has Joseph A. Obasanya been practicing?
Joseph A. Obasanya has 1 year experience. Calculated from a graduation year of 2025, reported in the CMS National Downloadable File.
CMS public data
What does Joseph A. Obasanya do most often?
According to Medicare billing data, Joseph A. Obasanya the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Joseph A. Obasanya confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Joseph A. Obasanya. If this is you, claiming it is free.
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