OLAYINKA MICHAEL JOHNSON M.D.
NPI 1093923229
Psychiatry & Neurology - Geriatric Psychiatry in Linthicum, MD
About Olayinka Michael Johnson M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OLAYINKA MICHAEL JOHNSON M.D. (NPI 1093923229) is an individual geriatric psychiatry provider in Linthicum, Maryland, licensed in Maryland (D0055180) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1988).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Olayinka Michael Johnson M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Olayinka Johnson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Linthicum, MD 21090
- Reassigned Medicare billing, Maryland enrollment
Washington, DC 20012
- Reassigned Medicare billing, District of Columbia enrollment
- 7 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21090 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Olayinka Johnson's NPI number?
The NPI number for Olayinka Johnson is 1093923229. It was assigned to this individual provider in the NPPES registry on May 20, 2007.
Where is Olayinka Johnson located?
Olayinka Johnson practices at 809 N Hammonds Ferry Rd Suite C, Linthicum, MD 21090. The listed phone number is (410) 789-2500.
What is Olayinka Johnson's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Geriatric Psychiatry, with taxonomy code 2084P0805X.
Is Olayinka Johnson enrolled in Medicare?
Yes. Olayinka Johnson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Olayinka Johnson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Olayinka Johnson reassigns Medicare benefits to 2 organizations: Complete Healthcare, LLC (Linthicum, MD) and Kinara Health And Home Care Services LLC (Washington, DC). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Olayinka Johnson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Olayinka Johnson was last updated on November 21, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Olayinka Michael Johnson, M.D. · NPI 1093923229
Geriatric Psychiatry physician in Linthicum, Maryland. Individual provider, active in the CMS NPPES registry since May 20, 2007.
## Identity
- **NPI:** 1093923229 (Entity type: Individual)
- **Enumerated:** May 20, 2007
- **Primary specialty:** Psychiatry & Neurology - Geriatric Psychiatry · taxonomy 2084P0805X
- **State license:** D0055180 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 809 N HAMMONDS FERRY RD, SUITE C, Linthicum, MD 21090-1301
- **Phone:** (410) 789-2500 · **Fax:** (410) 789-2501
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Complete Healthcare, LLC (NPI 1497955967, Linthicum, MD); Kinara Health And Home Care Services LLC (NPI 1255857405, Washington, DC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1988
## Record status
- **NPPES last updated:** November 21, 2011
- **Other identifiers:** Medicaid 014146100 (MD); Medicare UPIN H22255; Medicare PIN 533P060H (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1093923229) · Data from the CMS NPPES public registry.