DR. ROBERT HAMILTON SMITHSON SR. MD
NPI 1235115106
Internal Medicine in Raleigh, NC

Q: What is Robert Smithson's NPI number?

The NPI number for Robert Smithson is 1235115106. It was assigned to this individual provider in the NPPES registry on December 21, 2005.

Q: What is Robert Smithson's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Robert Smithson was last updated on August 10, 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 December 21, 2005PECOS Enrolled

2417 ATRIUM DR, SUITE 250, RALEIGH, NC 27607(919) 781-9650(919) 781-3572 Get Directions Write a Review

NPPES record last updated: August 10, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Robert Hamilton Smithson Sr. Md NPPES

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

DR. ROBERT HAMILTON SMITHSON SR. MD (NPI 1235115106) is an individual internal medicine provider in Raleigh, North Carolina, licensed in North Carolina (35515) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1235115106

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. ROBERT HAMILTON SMITHSON SR.Credential: MD

Location Address2417 ATRIUM DR, SUITE 250Raleigh, NC 27607-6673

Mailing Address2000 Perimeter Park Dr Ste 200Morrisville, NC 27560-8442

Phone(919) 781-9650

Fax(919) 781-3572

Sole ProprietorNo

Enumeration DateDecember 21, 2005

Last NPPES UpdateAugust 10, 2021

NPPES CertifiedAugust 10, 2021

✔ NPI 1235115106 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in NC · 35515

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.

2417 ATRIUM DR, Raleigh, NC 27607

Open in Google Maps ↗

Other Identifiers 1

Medicaid8978331NC

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna Healthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Robert Hamilton Smithson Sr. Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Robert Smithson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Unc Physicians Network Group Practices, LLC

Same address

Internal Medicine

2417 ATRIUM DR, SUITE 250
Raleigh, NC 27607

Reassigned Medicare billing, North Carolina enrollment
45 clinicians in this Medicare group

NPI 1780019661 (919) 781-9650

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.

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.

274 services144 patients

Blood test, basic group of blood chemicals (calcium, total) 80048

A basic group blood test measures the levels of certain chemicals in your blood, including calcium. This helps assess your overall health and detect potential problems. The procedure involves drawing a small amount of blood from your arm, which is then analyzed in a lab.

215 services127 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

213 services130 patients

Liver function blood test panel 80076

A liver function blood test panel helps check the health of your liver. It measures various proteins, liver enzymes, and bilirubin in your blood. If these levels are too high or too low, it could signal a liver problem. It's a simple, non-invasive test that involves drawing blood.

188 services121 patients

Blood test, lipids (cholesterol and triglycerides) 80061

A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.

183 services121 patients

Blood test, thyroid stimulating hormone (tsh) 84443

A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.

131 services108 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.

124 services78 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.

92 services92 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.

80 services48 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

16 services16 patients

Thyroxine (thyroid chemical), free 84439

The Thyroxine (thyroid chemical), free test is a blood test that measures the level of free T4 in your body. T4 is a hormone produced by your thyroid gland and is essential for growth and metabolism. If your T4 levels are too high or too low, it could indicate a thyroid disorder.

14 services13 patients

Dxa bone density measurement of hip, pelvis, spine 77080

A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.

13 services13 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.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 27607 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

$125.01 typical visit price

range $54.12 – $165.09

Typical copayment $31.25 (range $13.53 – $41.27)

Most-billed visit code 99204

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 20

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

DR. MATTHEW F ALVAREZ M.D.

Obstetrics & Gynecology

2417 ATRIUM DR, SUITE 200
RALEIGH, NC 27607

Wake County (919) 781-9555

DR. CHARLES S WEHBIE MD

Internal Medicine

2417 ATRIUM DR, SUITE 250
RALEIGH, NC 27607

Wake County (919) 781-9650

DR. RIG SUBHASH PATEL MD

Internal Medicine (Gastroenterology)

2417 ATRIUM DR, SUITE 150
RALEIGH, NC 27607

Wake County (919) 791-2040

DR. RUTH MOKEBA EKANGAKI MD

Internal Medicine (Gastroenterology)

2417 ATRIUM DR, SUITE 150
RALEIGH, NC 27607

Wake County (919) 791-2075

WOMENS HEALTH ALLIANCE, PA

Obstetrics & Gynecology

2417 ATRIUM DR, SUITE 200
RALEIGH, NC 27607

Wake County (919) 781-9555

MURTAZA PAREKH MD

Internal Medicine (Gastroenterology)

2417 ATRIUM DR, SUITE 150
RALEIGH, NC 27607

Wake County (919) 791-2040

DIGESTIVE HEALTHCARE, PA

Internal Medicine (Gastroenterology)

2417 ATRIUM DR, SUITE 150
RALEIGH, NC 27607

Wake County (919) 791-2040

DR. MORRIS ARTHUR POLLOCK MD

Internal Medicine (Gastroenterology)

2417 ATRIUM DR, SUITE 150
RALEIGH, NC 27607

Wake County (919) 791-2040

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 Robert Smithson's NPI number?

The NPI number for Robert Smithson is 1235115106. It was assigned to this individual provider in the NPPES registry on December 21, 2005.

Where is Robert Smithson located?

Robert Smithson practices at 2417 Atrium Dr Suite 250, Raleigh, NC 27607. The listed phone number is (919) 781-9650.

What is Robert Smithson's specialty?

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

Is Robert Smithson enrolled in Medicare?

Yes. Robert Smithson is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Robert Smithson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Smithson reassigns Medicare benefits to Unc Physicians Network Group Practices, LLC (Raleigh, 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 Robert Smithson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Robert Smithson accept?

Health plans from Cigna Healthcare list Robert Smithson 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.

When was this NPI record last updated?

The NPPES record for Robert Smithson was last updated on August 10, 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.