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NANCY C LASSON D.O.
NPI 1679572390
Internal Medicine in Providence, RI

Active since July 15, 2005PECOS EnrolledAccepts Medicare Assignment
1195 NORTH MAIN STREET, CNEMG PRIMARY CARE WMC, PROVIDENCE, RI 02904(401) 736-4562(401) 921-9864 Get Directions Write a Review

NPPES record last updated: March 19, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 19, 2025, Feb 19, 2025, Feb 12, 2025 and 3 more (6 updates tracked since 2017).

About Nancy C Lasson D.o. NPPES

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

NANCY C LASSON D.O. (NPI 1679572390) is an individual internal medicine provider in Providence, Rhode Island, licensed in Rhode Island (DO00867) and active in the NPI registry since July 2005. She is enrolled in Medicare PECOS, is affiliated with Rhode Island Hospital, and is a graduate of Philadelphia College Of Osteopathic Medicine (1989).

NPPES Registry Identity

NPI1679572390
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameNANCY C LASSONCredential: D.O.
Location Address1195 NORTH MAIN STREET, CNEMG PRIMARY CARE WMCProvidence, RI 02904-0288
Mailing Address455 Toll Gate Rd, Prc And CredentialingWarwick, RI 02886-2759 · (401) 273-0641 · Fax (401) 273-2919
Phone(401) 736-4562
Fax(401) 921-9864
Sole ProprietorNo
Medical School CMSPhiladelphia College Of Osteopathic MedicineGraduated 1989
Enumeration DateJuly 15, 2005
Last NPPES UpdateMarch 19, 20256 updates tracked since enumeration
NPPES CertifiedMarch 19, 2025
✔ NPI 1679572390 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in RI · DO00867
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1195 NORTH MAIN STREET, Providence, RI 02904
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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

Nancy C Lasson D.o. 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 ID6103993456
PECOS Enrollment IDI20170824000832
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

4

Medicare enrollment records show Nancy Lasson reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Lifespan Physician Group Inc
0.2 mi
Urology
195 COLLYER ST STE 201
Providence, RI 02904
  • Reassigned Medicare billing, Rhode Island enrollment
  • 1,372 clinicians in this Medicare group
NPI 1720949803 (401) 272-7799
The Miriam Hospital
1.0 mi
Multi-Specialty
146 W RIVER ST
Providence, RI 02904
  • Reassigned Medicare billing, Rhode Island enrollment
  • 53 clinicians in this Medicare group
NPI 1164716031 (401) 793-3215
Affinity Physicians LLC
2.9 mi
Anesthesiology
101 DUDLEY STREET, WIH DEPT OF ANESTHESIOLOGY
Providence, RI 02905
  • Reassigned Medicare billing, Rhode Island enrollment
  • 984 clinicians in this Medicare group
NPI 1053038471 (401) 274-1122
Christiana Care Health Services, Inc
258 mi
Family Medicine
1401 FOULK RD, SUITE 100B
Wilmington, DE 19803
  • Reassigned Medicare billing, Delaware enrollment
  • Also billed through NPI 1760811681 (Delaware)
  • 1,531 clinicians in this Medicare group
NPI 1619951068 (302) 477-3300

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 5

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.
88 services64 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.
70 services51 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.
42 services42 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
35 services30 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
16 services16 patients

Hospital Affiliations CMS Care Compare 4

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

Rhode Island Hospital

Acute Care Hospitals · Providence, RI
3/5 CMS rating
OwnershipTribal
CMS Certification Number410007
Location593 Eddy StreetProvidence, RI 02903 · Providence County
Emergency services

Kent County Memorial Hospital

Acute Care Hospitals · Warwick, RI
3/5 CMS rating
OwnershipProprietary
CMS Certification Number410009
Location455 Toll Gate RdWarwick, RI 02886 · Kent County
Emergency services Birthing friendly

Women & Infants Hospital Of Rhode Island

Acute Care Hospitals · Providence, RI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number410010
Location101 Dudley StreetProvidence, RI 02905 · Providence County
Emergency services Birthing friendly

The Miriam Hospital

Acute Care Hospitals · Providence, RI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number410012
Location164 Summit AvenueProvidence, RI 02906 · Providence County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02904 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
$134.17 typical visit price
range $58.57 – $177.03
Typical copayment $33.54 (range $14.64 – $44.25)
Most-billed visit code 99204
Established Patient
$103.10 typical visit price
range $18.92 – $144.38
Typical copayment $25.77 (range $4.73 – $36.09)
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 6

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

IRIS L TONG MD
Internal Medicine
1195 NORTH MAIN STREET, CNEMG PRIMARY CARE WMC
PROVIDENCE, RI 02904
Providence County (401) 736-4562
KATHY ANN REBEIRO APRN-CNP
Nurse Practitioner (Adult Health)
1195 NORTH MAIN STREET, CNEMG PRIMARY CARE WMC
PROVIDENCE, RI 02904
Providence County (401) 736-4562
MOLLY ANN FOX PA-C
Physician Assistant (Medical)
1195 NORTH MAIN STREET, CNEMG PRIMARY CARE WMC
PROVIDENCE, RI 02904
Providence County (401) 736-4562
RACHEL JOHANSON CNM, WHNP, FNP
Nurse Practitioner (Family)
1195 NORTH MAIN STREET, CNEMG PRIMARY CARE WMC
PROVIDENCE, RI 02904
Providence County (401) 736-4562
DR. AMELIA VERA TAJIK MD
Internal Medicine
1195 NORTH MAIN STREET, CNEMG PRIMARY CARE WMC
PROVIDENCE, RI 02904
Providence County (401) 736-4562
NKENNA ODOM MD
Family Medicine
1195 NORTH MAIN STREET, CNEMG PRIMARY CARE WMC
PROVIDENCE, RI 02904
Providence County (401) 736-4562

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 Nancy Lasson's NPI number?

The NPI number for Nancy Lasson is 1679572390. It was assigned to this individual provider in the NPPES registry on July 15, 2005.

Where is Nancy Lasson located?

Nancy Lasson practices at 1195 North Main Street Cnemg Primary Care Wmc, Providence, RI 02904. The listed phone number is (401) 736-4562.

What is Nancy Lasson's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Nancy Lasson enrolled in Medicare?

Yes. Nancy Lasson 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 Nancy Lasson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nancy Lasson reassigns Medicare benefits to 4 organizations: Lifespan Physician Group Inc (Providence, RI), The Miriam Hospital (Providence, RI), Affinity Physicians LLC (Providence, RI) and Christiana Care Health Services, Inc (Wilmington, DE). 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 Nancy Lasson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Nancy Lasson affiliated with any hospitals?

According to CMS data, Nancy Lasson is affiliated with Rhode Island Hospital, Kent County Memorial Hospital, Women & Infants Hospital Of Rhode Island and The Miriam Hospital.

When was this NPI record last updated?

The NPPES record for Nancy Lasson was last updated on March 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.