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GREGORY E. SAWIN MD, MPH
NPI 1699844225
Family Medicine in Durham, NC

Active since November 07, 2006PECOS EnrolledAccepts Medicare Assignment
3116 N DUKE ST FL 1, DURHAM, NC 27704(919) 660-2200 Get Directions Write a Review

NPPES record last updated: January 15, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Gregory E. Sawin Md, Mph NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GREGORY E. SAWIN MD, MPH (NPI 1699844225) is an individual family medicine provider in Durham, North Carolina, licensed in North Carolina (2019-02755) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS, is affiliated with Duke University Hospital, and is a graduate of Morehouse School Of Medicine (2002).

NPPES Registry Identity

NPI1699844225
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameGREGORY E. SAWINCredential: MD, MPH
Location Address3116 N DUKE ST FL 1Durham, NC 27704-2102
Mailing Address2200 W Main St Ste 400Durham, NC 27705-1108 · (919) 684-5614
Phone(919) 660-2200
Sole ProprietorNo
Medical School CMSMorehouse School Of MedicineGraduated 2002
Enumeration DateNovember 7, 2006
Last NPPES UpdateJanuary 15, 2020
✔ NPI 1699844225 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses✔ Licensed in NC · 2019-02755✔ Licensed in VA · 0101238112✔ Licensed in MA · 232606
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
3116 N DUKE ST FL 1, Durham, NC 27704
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Other Names 1

Former Name (1)Gregory E. Larson Sawin Md, Mph

Other Identifiers 1

Medicaid2140284MA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of North Carolina and more.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

Gregory E. Sawin Md, Mph 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.

PECOS PAC ID5193753051
PECOS Enrollment IDI20200219002336
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Gregory Sawin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Duke University Affiliated Physicians, Inc.
0.5 mi
Internal Medicine
4220 N ROXBORO ST
Durham, NC 27704
  • Reassigned Medicare billing, North Carolina enrollment
  • 636 clinicians in this Medicare group
NPI 1023046042 (919) 471-1518
Duke Health Integrated Practice, Inc
0.7 mi
Foot and Ankle Surgery
2609 N DUKE ST STE 301
Durham, NC 27704
  • Reassigned Medicare billing, North Carolina enrollment
  • 3,671 clinicians in this Medicare group
NPI 1518725936 (919) 477-9333

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
80 services63 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
24 services24 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
21 services21 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Duke University Hospital

Acute Care Hospitals · Durham, NC
5/5 CMS rating
OwnershipProprietary
CMS Certification Number340030
Location2100 Erwin RdDurham, NC 27705 · Durham County
Emergency services Birthing friendly

Duke Regional Hospital

Acute Care Hospitals · Durham, NC
4/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number340155
Location3643 N Roxboro StreetDurham, NC 27704 · Durham County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 27704 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$83.90 typical visit price
range $54.12 – $165.09
Typical copayment $20.97 (range $13.53 – $41.27)
Most-billed visit code 99203
Established Patient
$95.94 typical visit price
range $17.21 – $134.61
Typical copayment $23.98 (range $4.30 – $33.65)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. LINDSEY A JACKSON FNP
Nurse Practitioner (Family)
3116 N DUKE ST FL 1
DURHAM, NC 27704
Durham County (919) 660-2200

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 Sawin's NPI number?

The NPI number for Gregory Sawin is 1699844225. It was assigned to this individual provider in the NPPES registry on November 7, 2006. The provider is also known as Gregory E. Larson Sawin MD, Mph.

Where is Gregory Sawin located?

Gregory Sawin practices at 3116 N Duke St Fl 1, Durham, NC 27704. The listed phone number is (919) 660-2200.

What is Gregory Sawin's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Gregory Sawin enrolled in Medicare?

Yes. Gregory Sawin 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 Gregory Sawin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Sawin reassigns Medicare benefits to 2 organizations: Duke University Affiliated Physicians, Inc. (Durham, NC) and Duke Health Integrated Practice, Inc (Durham, NC). 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 Gregory Sawin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Sawin accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina, Ambetter of Tennessee and Cigna Healthcare list Gregory Sawin 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 Gregory Sawin affiliated with any hospitals?

According to CMS data, Gregory Sawin is affiliated with Duke University Hospital and Duke Regional Hospital.

When was this NPI record last updated?

The NPPES record for Gregory Sawin was last updated on January 15, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.