Dr. Robert A. Underwood, MD
- Medicare services, 2024
- 98
- Medicare patients, 2024
- 37
- Part D claims, 2024
- 75
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 677 Church St, Marietta, GA 30060
- Practice phone
- Call (470) 644-0012
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Wellstar Kennestone Regional Medical Center
Marietta, Georgia
Find Dr. Underwood's professional email, personal email and mobile number
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Dr. Robert A. Underwood is a general surgeon in Marietta, Georgia
Dr. Underwood practices at Wellstar Kennestone Regional Medical Center in Marietta, Georgia.
Dr. Underwood's NPI, 1063570521, was assigned on December 5, 2006. Dr. Underwood graduated from Medical College of Georgia School of Medicine in 1994. Dr. Underwood holds Georgia license 049950.
- NPI
- 1063570521NPI Registry (opens in a new tab)
- NPI enumeration date
- December 5, 2006
- NPI status
- Active
- Practice phone
- (470) 644-0012
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Robert A. Underwood practices at Wellstar Kennestone Regional Medical Center in Marietta, Georgia
Dr. Underwood's primary practice is Wellstar Kennestone Regional Medical Center, at 677 Church St, Marietta, GA 30060 in Cobb County. The practice phone is (470) 644-0012.
- Wellstar Kennestone Regional Medical Center677 Church St, Marietta, GA 30060 · Cobb CountyPhone(470) 644-0012
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Robert A. Underwood is affiliated with 1 site of care
Dr. Underwood's primary practice is Wellstar Kennestone Regional Medical Center in Marietta, Georgia.
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Robert A. Underwood's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Underwood practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Wellstar Kennestone Regional Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert A. Underwood is one of 853 general surgeons in Georgia
Surgery is Dr. Underwood's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Underwood is licensed in Georgia.
Specialties and state licenses
- Surgery, GeorgiaPrimary
General surgeons near Dr. Underwood
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Robert A. Underwood billed Medicare for 98 services in 2024
CMS data shows 98 Medicare services from Dr. Underwood across 4 procedure codes in 2024, for 37 Medicare patients. Medicare paid $19,017 for them.
Dr. Underwood's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 542024: 552%
- Office and hospital visits
- 2023: 292024: 283%
- Surgery
- 2023: 02024: 15
Where Dr. Underwood's Medicare services took place, 2024
- In an office5960%
- In a facility3940%
Dr. Underwood compared with the Georgia median for general surgeons, 2024
- Dr. Underwood
- Georgia median
- Medicare services
- 98vs 15035% below
- Medicare patients
- 37vs 10966% below
- Part D claims
- 67vs 5424% above
Medians across 789 general surgeons in Georgia with Dmand AI profiles that report each measure.
Dr. Underwood's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Underwood and other general surgeons in Georgia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert A. Underwood treated 37 Medicare patients in 2024, average age 73
CMS counts 37 Medicare patients who saw Dr. Underwood in 2024. The largest group is 65 to 74, with 18 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.42, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Underwood's median patient age at 69, with 50% women.
Dr. Underwood's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Underwood's Medicare patients by sex, 2024
- Women2362%
- Men1438%
Chronic conditions among Dr. Underwood's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Chronic kidney disease41%
- Ischemic heart disease41%
- Osteoporosis41%
- Diabetes35%
- Mood disorders30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Underwood's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert A. Underwood wrote 75 Medicare Part D claims in 2024
In 2024, Dr. Underwood wrote 75 Medicare Part D claims for 42 patients. 91% of them were for generic drugs. CMS names the drug for 67 of them, across 3 drugs with 11 or more claims each, at $235 in total drug cost. In 2023, CMS named 74 claims across 5 drugs.
Dr. Underwood's Part D claims by kind of drug, 2024
- Generic68 claims91%
- Brand-name and other7 claims9%
Dr. Underwood's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Underwood's Part D claims, 2024
- Opioids48%36 of 75 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 742024: 679%
Drugs named by CMS: 3 in 2024, 5 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Robert A. Underwood graduated from Medical College of Georgia School of Medicine
Dr. Underwood graduated from Medical College of Georgia School of Medicine in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert A. Underwood's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Robert A. Underwood
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What is Dr. Robert A. Underwood's NPI number?
Dr. Robert A. Underwood's NPI number is 1063570521. It was assigned on December 5, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert A. Underwood?
Dr. Robert A. Underwood is a general surgeon in Marietta, Georgia. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Robert A. Underwood practice?
Dr. Underwood practices at 677 Church St, Marietta, GA 30060. Dr. Underwood's primary practice is Wellstar Kennestone Regional Medical Center in Marietta, Georgia.
What is Dr. Robert A. Underwood's office phone number?
The practice phone on file for Dr. Underwood is (470) 644-0012.
What is Dr. Robert A. Underwood's medical license number?
Dr. Underwood holds Georgia license 049950.
Does Dr. Robert A. Underwood accept Medicare?
Yes. CMS data shows Dr. Underwood billed Medicare for 98 services in 2024.
How many Medicare patients does Dr. Robert A. Underwood see?
CMS counts 37 Medicare patients who saw Dr. Underwood in 2024, with an average age of 73.
What services does Dr. Robert A. Underwood bill to Medicare?
In 2024, Dr. Underwood's most billed Medicare services were ultrasound (76536), office visit, new patient (99205) and ultrasound (76998).
Where did Dr. Robert A. Underwood go to medical school?
Dr. Underwood graduated from Medical College of Georgia School of Medicine in 1994.
What drugs does Dr. Robert A. Underwood prescribe most?
In 2024 Medicare Part D data, Dr. Underwood's most prescribed drugs by claims were Tramadol HCl, Promethazine HCl and Levothyroxine Sodium.
How long has Dr. Robert A. Underwood been practicing?
Dr. Underwood graduated from medical school in 1994, 32 years ago.
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