DR. GREGORY N SINGLETON MD
NPI 1518948173
Anesthesiology in Allentown, PA
About Dr. Gregory N Singleton Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREGORY N SINGLETON MD (NPI 1518948173) is an individual anesthesiology provider in Allentown, Pennsylvania, licensed in Pennsylvania (MD424882) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Lehigh Valley Hospital, and is a graduate of Other (1992).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 10
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
Dr. Gregory N Singleton 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 Reassignment
Medicare enrollment records show Gregory Singleton reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Bethlehem, PA 18020
- Reassigned Medicare billing, Pennsylvania enrollment
- Medicare enrollment name: Professional Anesthesia Services Of North America PC
- 177 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 13
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.
Lehigh Valley Hospital
Acute Care Hospitals · Allentown, PASurgical Institute Of Reading
Acute Care Hospitals · Wyomissing, PAMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ALLENTOWN, PA 18102
ALLENTOWN, PA 18102
ALLENTOWN, PA 18102
ALLENTOWN, PA 18102
ALLENTOWN, PA 18102
ALLENTOWN, PA 18102
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 Gregory Singleton's NPI number?
The NPI number for Gregory Singleton is 1518948173. It was assigned to this individual provider in the NPPES registry on November 10, 2005.
Where is Gregory Singleton located?
Gregory Singleton practices at 451 W Chew St Suite 409, Allentown, PA 18102. The listed phone number is (610) 770-3130.
What is Gregory Singleton's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Gregory Singleton enrolled in Medicare?
Yes. Gregory Singleton 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 organization bills Medicare for Gregory Singleton's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Singleton reassigns Medicare benefits to Professional Anesthesia Services Of North America P.C. (Bethlehem, PA). The 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 Gregory Singleton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Gregory Singleton affiliated with any hospitals?
According to CMS data, Gregory Singleton is affiliated with Lehigh Valley Hospital and Surgical Institute Of Reading.
When was this NPI record last updated?
The NPPES record for Gregory Singleton was last updated on December 11, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Dr. Gregory N Singleton, MD · NPI 1518948173
Anesthesiology physician in Allentown, Pennsylvania. Individual provider, active in the CMS NPPES registry since November 10, 2005.
## Identity
- **NPI:** 1518948173 (Entity type: Individual)
- **Enumerated:** November 10, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** MD424882 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 451 W CHEW ST, SUITE 409, Allentown, PA 18102-3472
- **Phone:** (610) 770-3130 · **Fax:** (610) 770-3452
## 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:** Professional Anesthesia Services Of North America P.C. (NPI 1972994820, Bethlehem, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1992
## Record status
- **NPPES last updated:** December 11, 2007
- **Other identifiers:** Other 50049580; Other 1542353; Medicare PIN P00159903 (PA); and 7 more
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Source: [NPI Profile](https://npiprofile.com/npi/1518948173) · Data from the CMS NPPES public registry.