WILLIAM G LARSEN MD
NPI 1164483004
Family Medicine in Charlotte, NC

Q: What is William Larsen's NPI number?

The NPI number for William Larsen is 1164483004. It was assigned to this individual provider in the NPPES registry on March 30, 2006.

Q: What is William Larsen's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for William Larsen was last updated on March 3, 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.

Active since March 30, 2006PECOS EnrolledAccepts Medicare Assignment

7920 MOORES CHAPEL RD, CHARLOTTE, NC 28214(704) 926-7800(704) 926-7806 Get Directions Write a Review

NPPES record last updated: March 3, 2021. Verified against the NPPES registry weekly; last sync: November 08, 2026.

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About William G Larsen Md NPPES

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

WILLIAM G LARSEN MD (NPI 1164483004) is an individual family medicine provider in Charlotte, North Carolina, licensed in North Carolina (9300510) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Caromont Regional Medical Center, and is a graduate of Brody School Of Medicine At East Carolina University (1987).

NPPES Registry Identity

NPI1164483004

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameWILLIAM G LARSENCredential: MD

Location Address7920 MOORES CHAPEL RDCharlotte, NC 28214-9453

Mailing Address7920 Moores Chapel RdCharlotte, NC 28214-9453 · (704) 926-7800 · Fax (704) 926-7806

Phone(704) 926-7800

Fax(704) 926-7806

Sole ProprietorNo

Medical School CMSBrody School Of Medicine At East Carolina UniversityGraduated 1987

Enumeration DateMarch 30, 2006

Last NPPES UpdateMarch 3, 2021

NPPES CertifiedMarch 3, 2021

✔ NPI 1164483004 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in NC · 9300510

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.

7920 MOORES CHAPEL RD, Charlotte, NC 28214

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Other Identifiers 1

Medicaid8951033NC

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

William G Larsen 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 ID7315081544

PECOS Enrollment IDI20100225000443

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 Reassignment

Medicare enrollment records show William Larsen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Northwest Family Physicians, P.A.

Same address

Family Medicine

7920 MOORES CHAPEL RD
Charlotte, NC 28214

Reassigned Medicare billing, North Carolina enrollment
Medicare enrollment name: Northwest Family Physicians PA
5 clinicians in this Medicare group

NPI 1093721722 (704) 926-7800

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 12

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 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.

242 services151 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.

189 services189 patients

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.

154 services113 patients

Annual depression screening, 5 to 15 minutes G0444

An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.

112 services112 patients

Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180

This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.

52 services41 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

42 services42 patients

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

39 services12 patients

Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a G0179

This procedure involves a doctor or approved practitioner reviewing your health status and re-certifying your need for Medicare-covered home health services. It includes communication with the home health agency and assessment of your health reports, even when you're not physically present.

28 services12 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

27 services24 patients

Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 90677

The Pneumococcal Conjugate Vaccine (PCV20) is a shot given to protect against 20 types of bacteria that can cause serious infections like pneumonia and meningitis. It's administered through a muscle, usually in the arm. It's important for overall health.

18 services18 patients

Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment G0402

An Initial Preventive Physical Examination, also known as a "Welcome to Medicare" visit, is a one-time, face-to-face visit during your first 12 months of Medicare enrollment. It includes a review of your health, as well as education and counseling about preventive services and further screenings.

15 services15 patients

Administration of pneumococcal vaccine G0009

The pneumococcal vaccine helps protect against pneumococcal bacteria, which can cause severe infections like pneumonia and meningitis. The vaccine is given as an injection, typically in the arm. It's recommended for infants, older adults, and those with certain health conditions.

14 services14 patients

Hospital Affiliations CMS Care Compare 3

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

Caromont Regional Medical Center

Acute Care Hospitals · Gastonia, NC

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number340032

Location2525 Court DrGastonia, NC 28052 · Gaston County

Emergency services Birthing friendly

Novant Health Presbyterian Medical Center

Acute Care Hospitals · Charlotte, NC

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number340053

Location200 Hawthorne Lane Box 33549Charlotte, NC 28233 · Mecklenburg County

Emergency services Birthing friendly

Novant Health Huntersville Medical Center

Acute Care Hospitals · Huntersville, NC

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number340183

Location10030 Gilead RoadHuntersville, NC 28078 · Mecklenburg County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 28214 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.

Referred Medical Equipment & Supplies CMS DME claims 7

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

14 suppliers53 claims156 services$5.79 avg. paid by Medicare

Normal, low and high calibrator solution / chips A4256

DME-Other DME · category DE000N

2 suppliers13 claims13 services$2.87 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

8 suppliers23 claims42 services$1.11 avg. paid by Medicare

Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035

Other-Enteral and Parenteral · category OB006N

1 supplier11 claims312 services$4.70 avg. paid by Medicare

Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 kcal/ml) with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4152

Other-Enteral and Parenteral · category OB006N

1 supplier11 claims7,196 services$0.13 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

1 supplier12 claims12 services$5.08 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 4

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

NORTHWEST FAMILY PHYSICIANS, P.A.

Family Medicine

7920 MOORES CHAPEL RD
CHARLOTTE, NC 28214

Mecklenburg County (704) 926-7800

MARGARET R. HODGES FNP-C

Nurse Practitioner (Family)

7920 MOORES CHAPEL RD
CHARLOTTE, NC 28214

Mecklenburg County (704) 926-7800

JENNIFER LYNN DUNHAM NP

Nurse Practitioner

7920 MOORES CHAPEL RD
CHARLOTTE, NC 28214

Mecklenburg County (704) 926-7800

CATHERINE B NORTON MD

Family Medicine

7920 MOORES CHAPEL RD
CHARLOTTE, NC 28214

Mecklenburg County (704) 926-7800

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 William Larsen's NPI number?

The NPI number for William Larsen is 1164483004. It was assigned to this individual provider in the NPPES registry on March 30, 2006.

Where is William Larsen located?

William Larsen practices at 7920 Moores Chapel Rd, Charlotte, NC 28214. The listed phone number is (704) 926-7800.

What is William Larsen's specialty?

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

Is William Larsen enrolled in Medicare?

Yes. William Larsen 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 William Larsen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Larsen reassigns Medicare benefits to Northwest Family Physicians, P.A. (Charlotte, NC). 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 William Larsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Larsen accept?

Health plans from UnitedHealthcare list William Larsen 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 William Larsen affiliated with any hospitals?

According to CMS data, William Larsen is affiliated with Caromont Regional Medical Center, Novant Health Presbyterian Medical Center and Novant Health Huntersville Medical Center.

When was this NPI record last updated?

The NPPES record for William Larsen was last updated on March 3, 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.