RONALD CHRISTOPHER ROBERTS MD
NPI 1477180230
Internal Medicine - Medical Oncology in Chattanooga, TN

NPI Status: Active since March 23, 2020

Contact Information

605 GLENWOOD DR STE 200
CHATTANOOGA, TN
ZIP 37404
Phone: (423) 698-1844

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
Secondary Locations
Medicare Participation & PECOS Status
Physician Visit Costs
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Internal Medicine
Medical Oncology
PECOS Enrolled

About RONALD ROBERTS

This page provides the complete NPI Profile along with additional information for Ronald Roberts, an internist established in Chattanooga, Tennessee with a medical specialization in Internal Medicine, focusing in medical oncology . The healthcare provider is registered in the NPI registry with number 1477180230 assigned on March 2020. The practitioner's primary taxonomy code is 207RX0202X with license number 76551 (TN). The provider is registered as an individual and his NPI record was last updated February 2026.

NPI: 1477180230
Provider Name: RONALD CHRISTOPHER ROBERTS MD
Other Name: CHRISTOPHER RONALD FUNK MD
Other Name Type: Former Name (1)
Gender: Male
Entity Type: Individual
Location Address: 605 GLENWOOD DR STE 200 CHATTANOOGA, TN 37404
Location Phone: (423) 698-1844
Mailing Address: 2004 HAYES ST STE 800 NASHVILLE, TN 37203
Mailing Phone: (615) 329-0570
Mailing Fax
Is Sole Proprietor?: No
Enumeration Date: 03-23-2020
Last Update Date: 02-20-2026
Code Navigator

An internist like Ronald Roberts is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Secondary Locations

1364 Clifton Rd NE
Atlanta, GA 30322
(404) 778-7777
49 Jesse Hill Jr Dr SE
Atlanta, GA 30303
(404) 778-7777

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification: Internal Medicine Medical Oncology
Taxonomy Code: 207RX0202X
Type: Allopathic & Osteopathic Physicians
License No.: 76551
License State: TN
Taxonomy Description: An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No.	Taxonomy Code	Type	Classification / Specialization	License No. (State)
1	207RX0202X	Allopathic & Osteopathic Physicians	Internal Medicine Medical Oncology	91888 (GA)

Medicare Participation & PECOS Enrollment Status

Ronald Roberts is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

Is the provider registered in PECOS? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes

Physician Visit Costs

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 37404 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99205

Average New Patient Price $160.89
Minimum New Patient Price $52.64
Maximum New Patient Price $160.89

Average New Patient Copayment $40.22
Minimum New Patient Copayment $13.16
Maximum New Patient Copayment $40.22

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

Average Established Patient Price $93.6
Minimum Established Patient Price $16.72
Maximum Established Patient Price $131.41

Average Established Patient Copayment $23.4
Minimum Established Patient Copayment $4.18
Maximum Established Patient Copayment $32.85

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1477180230, we treat the final digit (0) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 14 → 1 + 4

Pos 4

Unchanged

Pos 5

Doubled → 2

Pos 6

Unchanged

Pos 7

Doubled → 0

Pos 8

Unchanged

Pos 9

Doubled → 6

Check

Target digit

Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 7 → 14 → 5 1 → 2 0 → 0 3 → 6