DANIEL L SOUTHREN MD
NPI 1144600073
Anesthesiology in Philadelphia, PA
About Daniel L Southren Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DANIEL L SOUTHREN MD (NPI 1144600073) is an individual anesthesiology provider in Philadelphia, Pennsylvania, licensed in Massachusetts (278076) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS, is affiliated with Good Samaritan Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Other Identifiers 1
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
Daniel L Southren 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
9Medicare enrollment records show Daniel Southren reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Patchogue, NY 11772
- Reassigned Medicare billing, New Hampshire enrollment
- 145 clinicians in this Medicare group
Oxford, MA 01540
- Reassigned Medicare billing, Massachusetts enrollment
- 2,902 clinicians in this Medicare group
Fall River, MA 02721
- Reassigned Medicare billing, Massachusetts enrollment
- 347 clinicians in this Medicare group
Fall River, MA 02720
- Reassigned Medicare billing, Massachusetts enrollment
- 192 clinicians in this Medicare group
Needham, MA 02492
- Reassigned Medicare billing, Massachusetts enrollment
- 556 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 332 clinicians in this Medicare group
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 716 clinicians in this Medicare group
Lawrence, MA 01842
- Reassigned Medicare billing, Massachusetts enrollment
- 231 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 2
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Good Samaritan Medical Center
Acute Care Hospitals · Brockton, MAOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHILADELPHIA, PA 19104
PHILADELPHIA, PA 19104
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 Daniel Southren's NPI number?
The NPI number for Daniel Southren is 1144600073. It was assigned to this individual provider in the NPPES registry on June 5, 2015.
Where is Daniel Southren located?
Daniel Southren practices at 3400 Spruce St, Philadelphia, PA 19104. The listed phone number is (215) 893-7246.
What is Daniel Southren's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Daniel Southren enrolled in Medicare?
Yes. Daniel Southren 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 Daniel Southren's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Daniel Southren reassigns Medicare benefits to 9 organizations: Hospitalist Medicine Physicians Of New York - Patchogue PC (Patchogue, NY), Umass Memorial Medical Group, Inc. (Oxford, MA), Steward Medical Group, Inc (Fall River, MA), North American Partners In Anesthesia Massachusetts LLC (Fall River, MA), Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Needham, MA) and 4 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 Daniel Southren's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Daniel Southren accept?
Health plans from Taro Health and WellSense Health Plan list Daniel Southren 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 Daniel Southren affiliated with any hospitals?
According to CMS data, Daniel Southren is affiliated with Good Samaritan Medical Center.
When was this NPI record last updated?
The NPPES record for Daniel Southren was last updated on December 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.
# Daniel L Southren, MD · NPI 1144600073
Anesthesiology physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since June 5, 2015.
## Identity
- **NPI:** 1144600073 (Entity type: Individual)
- **Enumerated:** June 5, 2015
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 278076 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 3400 SPRUCE ST, Philadelphia, PA 19104-4238
- **Phone:** (215) 893-7246 · **Fax:** (215) 893-7270
## 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:** 9 organizations under Medicare reassignment (form CMS-855R): Hospitalist Medicine Physicians Of New York - Patchogue PC (NPI 1366920993, Patchogue, NY); Umass Memorial Medical Group, Inc. (NPI 1982381018, Oxford, MA); Steward Medical Group, Inc (NPI 1043711914, Fall River, MA); North American Partners In Anesthesia Massachusetts LLC (NPI 1457867020, Fall River, MA); Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1255818472, Needham, MA); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** December 8, 2025
- **Other identifiers:** Medicaid 110152585A (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1144600073) · Data from the CMS NPPES public registry.