JOSEPH TWANMOH MD
NPI 1396784336
Emergency Medicine in Baltimore, MD
About Joseph Twanmoh Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOSEPH TWANMOH MD (NPI 1396784336) is an individual emergency medicine provider in Baltimore, Maryland, licensed in Maryland (D0046505) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Upmc Carlisle, and maintains a secondary practice location in Allentown.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 4
Accepted Insurance
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
Joseph Twanmoh Md 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
16Medicare enrollment records show Joseph Twanmoh reassigns Medicare billing to 16 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hanover, PA 17331
- Reassigned Medicare billing, Pennsylvania enrollment
- 298 clinicians in this Medicare group
West Grove, PA 19390
- Reassigned Medicare billing, Pennsylvania enrollment
- 106 clinicians in this Medicare group
Dover, DE 19901
- Reassigned Medicare billing, Delaware enrollment
- 142 clinicians in this Medicare group
Harrisburg, PA 17101
- Reassigned Medicare billing, Pennsylvania enrollment
- 209 clinicians in this Medicare group
Phoenixville, PA 19460
- Reassigned Medicare billing, Pennsylvania enrollment
- 529 clinicians in this Medicare group
Pottstown, PA 19465
- Reassigned Medicare billing, Pennsylvania enrollment
- 474 clinicians in this Medicare group
Philadelphia, PA 19127
- Reassigned Medicare billing, Pennsylvania enrollment
- 176 clinicians in this Medicare group
Mifflin, PA 17058
- Reassigned Medicare billing, Pennsylvania enrollment
- 4,429 clinicians in this Medicare group
Langhorne, PA 19047
- Reassigned Medicare billing, Pennsylvania enrollment
- Medicare enrollment name: Emergency Care Services Of Pennsylvania PC
- 329 clinicians in this Medicare group
Windber, PA 15963
- Reassigned Medicare billing, Pennsylvania enrollment
- 53 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Upmc Carlisle
Acute Care Hospitals · Carlisle, PAUpmc Pinnacle Hospitals
Acute Care Hospitals · Harrisburg, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21229 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Joseph Twanmoh's NPI number?
The NPI number for Joseph Twanmoh is 1396784336. It was assigned to this individual provider in the NPPES registry on June 5, 2006.
Where is Joseph Twanmoh located?
Joseph Twanmoh practices at 900 S. Caton Ave. St. Agnes Hospital, Baltimore, MD 21229. The listed phone number is (410) 368-2012.
What is Joseph Twanmoh's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Joseph Twanmoh enrolled in Medicare?
Yes. Joseph Twanmoh 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 Joseph Twanmoh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Twanmoh reassigns Medicare benefits to 16 organizations: Emergency Physician Associates Of Pennsylvania, PC (Hanover, PA), West Grove Clinic Company LLC (West Grove, PA), Bayhealth Emergency Physicians LLC (Dover, DE), Pinnacle Health Emergency Department Services LLC (Harrisburg, PA), Phoenixville Clinic Company LLC (Phoenixville, PA) and 11 more organizations, listed in the Medicare section above. 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 Joseph Twanmoh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Joseph Twanmoh accept?
Health plans from CareSource, Oscar Health and Oscar Insurance Company list Joseph Twanmoh as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Joseph Twanmoh affiliated with any hospitals?
According to CMS data, Joseph Twanmoh is affiliated with Upmc Carlisle and Upmc Pinnacle Hospitals.
When was this NPI record last updated?
The NPPES record for Joseph Twanmoh was last updated on February 17, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Joseph Twanmoh, MD · NPI 1396784336
Emergency Medicine physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since June 5, 2006.
## Identity
- **NPI:** 1396784336 (Entity type: Individual)
- **Enumerated:** June 5, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** D0046505 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 900 S. CATON AVE., ST. AGNES HOSPITAL, Baltimore, MD 21229-5201
- **Phone:** (410) 368-2012
## 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:** 16 organizations under Medicare reassignment (form CMS-855R): Emergency Physician Associates Of Pennsylvania, PC (NPI 1619990900, Hanover, PA); West Grove Clinic Company LLC (NPI 1790856078, West Grove, PA); Bayhealth Emergency Physicians LLC (NPI 1073012696, Dover, DE); Pinnacle Health Emergency Department Services LLC (NPI 1487693404, Harrisburg, PA); Phoenixville Clinic Company LLC (NPI 1275173957, Phoenixville, PA); and 11 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rutgers, Robert Woood Johnson Medical School, class of 1983
## Record status
- **NPPES last updated:** February 17, 2022
- **Other identifiers:** Other 20047170 (MD); Other 60059303 (MD); Medicaid 338041600 (MD); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1396784336) · Data from the CMS NPPES public registry.