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CLAIRE KATHRYN LARSON MD
NPI 1780974584
Internal Medicine - Geriatric Medicine in Chapel Hill, NC

Active since April 13, 2011PECOS EnrolledAccepts Medicare Assignment
5003 OLD CLINIC BLDG CB 7550, CHAPEL HILL, NC 27599(919) 452-1462 Get Directions Write a Review

NPPES record last updated: April 5, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 5, 2021, Feb 16, 2019 (2 updates tracked since 2019).

About Claire Kathryn Larson Md NPPES

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

CLAIRE KATHRYN LARSON MD (NPI 1780974584) is an individual geriatric medicine provider in Chapel Hill, North Carolina, licensed in North Carolina (2018-00960) and active in the NPI registry since April 2011. She is enrolled in Medicare PECOS, is affiliated with Unc Hospitals, and is a graduate of University Of North Carolina At Chapel Hill School Of Medicine (2011).

NPPES Registry Identity

NPI1780974584
Entity TypeIndividualFemale
Primary Taxonomy207RG0300X
Provider Legal NameCLAIRE KATHRYN LARSONCredential: MD
Location Address5003 OLD CLINIC BLDG CB 7550Chapel Hill, NC 27599-2204
Mailing Address5003 Old Clinic Bldg Cb 7550Chapel Hill, NC 27599-7550 · (919) 452-1462
Phone(919) 452-1462
Sole ProprietorNo
Medical School CMSUniversity Of North Carolina At Chapel Hill School Of MedicineGraduated 2011
Enumeration DateApril 13, 2011
Last NPPES UpdateApril 5, 20212 updates tracked since enumeration
NPPES CertifiedApril 5, 2021
✔ NPI 1780974584 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
Licenses✔ Licensed in NC · 2018-00960✔ Licensed in CA · A123117
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
5003 OLD CLINIC BLDG CB 7550, Chapel Hill, NC 27599
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.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

Claire Kathryn Larson 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.

PECOS PAC ID9830409937
PECOS Enrollment IDI20180803002512
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

3

Medicare enrollment records show Claire Larson reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of North Carolina At Chapel Hill
11 mi
Anesthesiology
101 MANNING DR
Chapel Hill, NC 27514
  • Reassigned Medicare billing, North Carolina enrollment
  • 2,797 clinicians in this Medicare group
NPI 1780669200 (984) 974-1000
The Cedars Of Chapel Hill Club, Inc.
11 mi
Health Service
101 GREEN CEDAR LN
Chapel Hill, NC 27517
  • Reassigned Medicare billing, North Carolina enrollment
  • 19 clinicians in this Medicare group
NPI 1417073412 (919) 259-7934
Permanente Medical Group Inc
2,316 mi
Internal Medicine
7373 WEST LANE
Stockton, CA 95210
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1548343510 (209) 476-2000

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.

Injection, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
780 services11 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.
229 services117 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
99 services70 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
91 services34 patients
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306
An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.
50 services48 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
49 services36 patients

Hospital Affiliations CMS Care Compare 3

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

Unc Hospitals

Acute Care Hospitals · Chapel Hill, NC
5/5 CMS rating
OwnershipGovernment - State
CMS Certification Number340061
Location101 Manning DriveChapel Hill, NC 27514 · Orange County
Emergency services Birthing friendly

Rex Hospital

Acute Care Hospitals · Raleigh, NC
5/5 CMS rating
OwnershipGovernment - State
CMS Certification Number340114
Location4420 Lake Boone TrailRaleigh, NC 27607 · Wake County
Emergency services Birthing friendly

Chatham Hospital Inc

Critical Access Hospitals · Siler City, NC
OwnershipVoluntary non-profit - Private
CMS Certification Number341311
Location475 Progress BlvdSiler City, NC 27344 · Chatham County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 27599 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
$165.09 typical visit price
range $54.12 – $165.09
Typical copayment $41.27 (range $13.53 – $41.27)
Most-billed visit code 99205
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.

Referred Medical Equipment & Supplies CMS DME claims 10

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
7 suppliers14 claims49 services$5.38 avg. paid by Medicare
Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
4 suppliers15 claims15 services$47.80 avg. paid by Medicare
Humidifier, heated, used with positive airway pressure device E0562
DME-Other DME · category DE001N
2 suppliers15 claims15 services$14.23 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
2 suppliers13 claims13 services$3.11 avg. paid by Medicare
Continuous positive airway pressure (cpap) device E0601
DME-Other DME · category DE001N
2 suppliers21 claims21 services$38.15 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
3 suppliers42 claims42 services$88.28 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Claire Larson's NPI number?

The NPI number for Claire Larson is 1780974584. It was assigned to this individual provider in the NPPES registry on April 13, 2011.

Where is Claire Larson located?

Claire Larson practices at 5003 Old Clinic Bldg Cb 7550, Chapel Hill, NC 27599. The listed phone number is (919) 452-1462.

What is Claire Larson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is Claire Larson enrolled in Medicare?

Yes. Claire Larson 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 Claire Larson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Claire Larson reassigns Medicare benefits to 3 organizations: University Of North Carolina At Chapel Hill (Chapel Hill, NC), The Cedars Of Chapel Hill Club, Inc. (Chapel Hill, NC) and Permanente Medical Group Inc (Stockton, CA). 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 Claire Larson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Claire Larson accept?

Health plans from UnitedHealthcare list Claire Larson 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 Claire Larson affiliated with any hospitals?

According to CMS data, Claire Larson is affiliated with Unc Hospitals, Rex Hospital and Chatham Hospital Inc.

When was this NPI record last updated?

The NPPES record for Claire Larson was last updated on April 5, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.