Dr. Robert Martin Marcus , MD
Internal Medicine • Atlanta, GA
4890 Roswell Rd, Suite 250
Atlanta, GA 303422606
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Robert Marcus is listed in NPPES under Internal Medicine.
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NPI assigned on March 3, 2006; this date does not establish years in practice.
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Published CMS data list 849 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 36415 — Insertion of needle into vein for collection of blood sample: 244 service units.
- 99214 — Established patient outpatient office visit: 189 service units.
- 99213 — Established patient outpatient office visit: 129 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 11 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 5,260 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Atorvastatin Calcium — 397 prescription fills, including refills.
- Losartan Potassium — 269 prescription fills, including refills.
- Amlodipine Besylate — 244 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 110 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 70% of clinicians listed under Internal Medicine in Atlanta, GA (2024, 419 clinicians with data). Median for this group: 395. Middle half: 140 to 891.
Close to the middle for Medicare Part B services among clinicians listed under Internal Medicine in Georgia (2024, 2,224 clinicians with data). Median for this group: 672. Middle half: 262 to 1,455.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 1,527 in 2020 to 849 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
4890 Roswell Rd
Suite 250
Atlanta, GA 303422606
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 2 distinct group names: Physiotherapy Associates Inc; Piedmont Medical Care Corporation. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
State University Of New York At Stony Brook, School Of Medicine
1990
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
240 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $53,769 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $39,917 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
12,339 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$338,098 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $633.14 across 27 records.
By nature of payment
- Food and Beverage: $633.14 across 27 records.
Reporting-company totals (3 largest of 15)
- Sanofi and Genzyme US Companies: $163.04 across 3 records.
- Pfizer Inc.: $74.92 across 4 records.
- Novo Nordisk Inc: $74.19 across 4 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
36 years (graduated 1990)
CMS Doctors and Clinicians data list 1990 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Marcus has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Marcus as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Atlanta and Georgia
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 70% of clinicians listed under Internal Medicine in Atlanta, GA (2024, 419 clinicians with data). Median for this group: 395. Middle half: 140 to 891.
Close to the middle for clinicians listed under Internal Medicine in Georgia (2024, 2,224 clinicians with data). Median for this group: 672. Middle half: 262 to 1,455.
Medicare-allowed amount
Close to the middle for clinicians listed under Internal Medicine in Atlanta, GA (2024, 419 clinicians with data). Median for this group: $39,523. Middle half: $14,296 to $81,178.
Close to the middle for clinicians listed under Internal Medicine in Georgia (2024, 2,224 clinicians with data). Median for this group: $60,432. Middle half: $25,430 to $112,727.
Paid by Medicare
Close to the middle for clinicians listed under Internal Medicine in Atlanta, GA (2024, 419 clinicians with data). Median for this group: $30,690. Middle half: $10,822 to $63,589.
Close to the middle for clinicians listed under Internal Medicine in Georgia (2024, 2,224 clinicians with data). Median for this group: $46,319. Middle half: $19,271 to $87,339.
Medicare Part D prescriptions
More Part D prescriptions than 80% of clinicians listed under Internal Medicine in Atlanta, GA (2024, 456 clinicians with data). Median for this group: 877. Middle half: 111 to 3,837.
More Part D prescriptions than 70% of clinicians listed under Internal Medicine in Georgia (2024, 2,481 clinicians with data). Median for this group: 990. Middle half: 139 to 5,701.
Part D drug cost
A higher Part D drug cost than 75% of clinicians listed under Internal Medicine in Atlanta, GA (2024, 456 clinicians with data). Median for this group: $67,741. Middle half: $6,687 to $326,367.
A higher Part D drug cost than 65% of clinicians listed under Internal Medicine in Georgia (2024, 2,481 clinicians with data). Median for this group: $71,428. Middle half: $6,948 to $490,450.
872 active clinicians are listed under Internal Medicine with a practice address in Atlanta, GA (3,919 in Georgia).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Atlanta
18.3% of these 872 clinicians have the CMS telehealth indicator.
56.8% of these 872 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 44% from 1,527 in 2020 to 849 in 2024.
- 2020: 1,527
- 2021: 1,783
- 2022: 1,679
- 2023: 1,400
- 2024: 849
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Medicare-allowed amount
Medicare-allowed amount decreased 20% from $66,913 in 2020 to $53,769 in 2024.
- 2020: $66,913
- 2021: $95,804
- 2022: $97,951
- 2023: $84,830
- 2024: $53,769
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Paid by Medicare
Paid by Medicare decreased 12% from $45,547 in 2020 to $39,917 in 2024.
- 2020: $45,547
- 2021: $66,526
- 2022: $68,891
- 2023: $60,994
- 2024: $39,917
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 21% from 6,618 in 2020 to 5,260 in 2024.
- 2020: 6,618
- 2021: 6,085
- 2022: 6,458
- 2023: 6,136
- 2024: 5,260
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30-day fills
30-day fills decreased 16% from 14,695 in 2020 to 12,339 in 2024.
- 2020: 14,695
- 2021: 13,760
- 2022: 14,660
- 2023: 13,838
- 2024: 12,339
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Part D drug cost
Part D drug cost decreased 15% from $397,160 in 2020 to $338,098 in 2024.
- 2020: $397,160
- 2021: $378,679
- 2022: $430,366
- 2023: $436,967
- 2024: $338,098
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $72.74 in 2021 to $633.14 in 2025.
- 2021: $72.74
- 2022: $429.26
- 2023: $795.34
- 2024: $647.82
- 2025: $633.14
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): 27 records totaling $633.14.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
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TZIELD | General | $122.58 |
| Axsome Therapeutics, Inc. |
Food and Beverage
In-kind items and services
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Auvelity | General | $27.50 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Ozempic | General | $24.68 |
| Eisai Inc. |
Food and Beverage
In-kind items and services
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Leqembi | General | $23.91 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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ZEPBOUND | General | $23.23 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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— | General | $23.12 |
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
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General - Pain Management | General | $22.94 |
| Bausch Health US, LLC |
Food and Beverage
In-kind items and services
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WELLBUTRIN | General | $22.41 |
| Exact Sciences Corporation |
Food and Beverage
In-kind items and services
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Cologuard Collection Kit | General | $22.11 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
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TZIELD | General | $21.34 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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QULIPTA | General | $20.95 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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SHINGRIX | General | $20.29 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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SHINGRIX | General | $19.13 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
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TZIELD | General | $19.12 |
| Exact Sciences Corporation |
Food and Beverage
In-kind items and services
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Cologuard Collection Kit | General | $18.32 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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ELIQUIS | General | $17.99 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
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OPSUMIT | General | $17.79 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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KISUNLA | General | $17.78 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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PREVNAR 20 | General | $17.17 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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QULIPTA | General | $17.17 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
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EVENITY | General | $16.95 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Rybelsus | General | $16.65 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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NURTEC ODT | General | $16.64 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Ozempic | General | $16.46 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Ozempic | General | $16.40 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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36415
Insertion of needle into vein for collection of blood sample
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244 | 191 | $23.00 | $8.65 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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189 | 155 | $385.82 | $128.42 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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129 | 97 | $262.78 | $90.40 |
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81003
Automated urinalysis test
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62 | 61 | $9.00 | $2.20 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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52 | 52 | $73.00 | $14.37 |
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G0009
Administration of pneumococcal vaccine
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37 | 37 | $57.00 | $32.05 |
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90677
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use
|
34 | 34 | $1095.00 | $288.84 |
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83036
Hemoglobin a1c level
|
31 | 26 | $40.00 | $9.52 |
|
90662
Influenza vaccine split virus, preservative free
|
29 | 29 | $219.00 | $80.80 |
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G0008
Administration of influenza virus vaccine
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29 | 29 | $57.00 | $32.05 |
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90471
Administration of vaccine
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13 | 13 | $69.08 | $20.61 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 397 | 32,476 | $3,489.93 | 117 |
| Losartan Potassium | Losartan Potassium | 269 | 21,827 | $1,867.23 | 78 |
| Amlodipine Besylate | Amlodipine Besylate | 244 | 19,210 | $1,831.80 | 76 |
| Levothyroxine Sodium | Levothyroxine Sodium | 217 | 14,782 | $2,022.14 | 56 |
| Metoprolol Succinate | Metoprolol Succinate | 213 | 16,034 | $2,302.19 | 58 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 188 | 16,170 | $2,014.19 | 58 |
| Lisinopril | Lisinopril | 161 | 12,810 | $1,237.27 | 49 |
| Chlorthalidone | Chlorthalidone | 126 | 9,100 | $1,998.60 | 38 |
| Omeprazole | Omeprazole | 124 | 9,682 | $1,236.74 | 39 |
| Escitalopram Oxalate | Escitalopram Oxalate | 115 | 8,235 | $1,259.25 | 32 |
| Simvastatin | Simvastatin | 111 | 9,810 | $822.00 | 33 |
| Hydrochlorothiazide | Hydrochlorothiazide | 103 | 8,345 | $304.65 | 31 |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 94 | 5,475 | $1,573.67 | 17 |
| Metformin Hcl | Metformin Hcl | 84 | 6,990 | $550.49 | 27 |
| Tamsulosin Hcl | Tamsulosin Hcl | 80 | 5,502 | $1,205.04 | 25 |
| Spironolactone | Spironolactone | 74 | 4,740 | $859.14 | 19 |
| Potassium Chloride | Potassium Chloride | 73 | 5,760 | $1,240.16 | 27 |
| Allopurinol | Allopurinol | 72 | 5,317 | $599.94 | 22 |
| Eliquis | Apixaban | 66 | 2,825 | $54,083.90 | 16 |
| Pantoprazole Sodium | Pantoprazole Sodium | 60 | 5,037 | $892.30 | 20 |
| Trazodone Hcl | Trazodone Hcl | 60 | 4,200 | $499.09 | 22 |
| Ramipril | Ramipril | 58 | 4,920 | $520.95 | 19 |
| Furosemide | Furosemide | 56 | 3,464 | $218.33 | 16 |
| Metformin Hcl Er | Metformin Hcl | 56 | 4,155 | $956.60 | 15 |
| Alprazolam | Alprazolam | 55 | 1,361 | $111.16 | 19 |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207R00000X
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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20080401000729
GA
4385721315
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Physiotherapy Associates Inc
4579 S Cobb Dr Se, Smyrna, GA 300806389
Phone: 7704363665
Piedmont Medical Care Corporation
105 Collier Rd Nw, Atlanta, GA 303091731
Phone: 4043673210
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Doctor of Osteopathic Medicine (D.O.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated March 03, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Internal Medicine Providers in Atlanta
- Dr. Tse-Hwa Yin, MD
- Dr. Richard Hansen, MD
- Dr. Carson Womack, MD
- Dr. Daniel Goodman, MD
- Dr. Amber Syed, MD
- Dr. Ibrez Bandukwala, MD
Mailing Address
4890 Roswell Rd, Suite 250
Atlanta, GA 303422606
Phone: 4042559244