Dr. Mark Thomas Bates , MD
Internal Medicine โข Decatur, GA
2124 Candler Rd
Decatur, GA 300325572
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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NPI assigned on February 12, 2007; this date does not establish years in practice.
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Published CMS data list 17 Original Medicare Part B services in 2022.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2022. Published rows only; this is not a quality measure.
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Published Part B service records, 2022:
- 99214 โ Established patient outpatient office visit: 17 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2022. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2021 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2022). CPT notice
See the full table ยท Guide: How to read Medicare Part B data
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Published CMS data list 906 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ 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 โ 69 prescription fills, including refills.
- Diclofenac Sodium โ 66 prescription fills, including refills.
- Amlodipine Besylate โ 46 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 39 records in the table ยท Guide: How to read Medicare Part D prescriber data
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Fewer Part D prescriptions than 65% of clinicians listed under Internal Medicine in Decatur, GA (2024, 49 clinicians with data). Median for this group: 2,160. Middle half: 253 to 5,700.
Close to the middle for Part D prescriptions among clinicians listed under Internal Medicine in Georgia (2024, 2,481 clinicians with data). Median for this group: 990. Middle half: 139 to 5,701.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 24 in 2019 to 17 in 2022.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2019โ2022.
Practice Location & Contact Primary Location
2124 Candler Rd
Decatur, GA 300325572
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $1,852 in 2022
The total amount Medicare approved for these services in 2022. 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 โ by Provider and Service, 2022.
Paid by Medicare
About $1,387 in 2022
The part of the Medicare-allowed amount that Medicare itself paid in 2022, 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 โ by Provider and Service, 2022.
30-day fills
2,097 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
$54,834 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 โ by Provider and Drug, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019โ2025.
NPI first issued
2007
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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, โDoes your provider accept Medicare as full payment?โ
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. Bates 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. Bates 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 Decatur and Georgia
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Fewer Part D prescriptions than 65% of clinicians listed under Internal Medicine in Decatur, GA (2024, 49 clinicians with data). Median for this group: 2,160. Middle half: 253 to 5,700.
Close to the middle for 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 lower Part D drug cost than 60% of clinicians listed under Internal Medicine in Decatur, GA (2024, 49 clinicians with data). Median for this group: $116,734. Middle half: $20,674 to $382,893.
Close to the middle for 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.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Bates are from 2022.
145 active clinicians are listed under Internal Medicine with a practice address in Decatur, GA (3,919 in Georgia).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Decatur
13.8% of these 145 clinicians have the CMS telehealth indicator.
35.2% of these 145 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 29% from 24 in 2019 to 17 in 2022.
- 2019: 24
- 2022: 17
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Medicare-allowed amount
Medicare-allowed amount decreased 29% from $2,616 in 2019 to $1,852 in 2022.
- 2019: $2,616
- 2022: $1,852
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Paid by Medicare
Paid by Medicare decreased 19% from $1,710 in 2019 to $1,387 in 2022.
- 2019: $1,710
- 2022: $1,387
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 75% from 3,649 in 2020 to 906 in 2024.
- 2020: 3,649
- 2021: 3,696
- 2022: 4,243
- 2023: 2,222
- 2024: 906
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30-day fills
30-day fills decreased 76% from 8,714 in 2020 to 2,097 in 2024.
- 2020: 8,714
- 2021: 8,826
- 2022: 9,886
- 2023: 5,217
- 2024: 2,097
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Part D drug cost
Part D drug cost decreased 44% from $98,544 in 2020 to $54,834 in 2024.
- 2020: $98,544
- 2021: $105,296
- 2022: $110,762
- 2023: $65,850
- 2024: $54,834
Sources: CMS Medicare Physician & Other Practitioners (2022), CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2018โ2021 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 โ by Provider and Service data, 2019โ2022; 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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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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17 | 12 | $253.00 | $108.94 |
Source: CMS Part B by Provider and Service, 2022; 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 | 69 | 6,210 | $602.64 | 45 |
| Diclofenac Sodium | Diclofenac Sodium | 66 | 3,190 | $1,281.82 | 54 |
| Amlodipine Besylate | Amlodipine Besylate | 46 | 4,170 | $214.87 | 31 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 41 | 724 | $1,208.11 | 27 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 38 | 3,440 | $285.85 | 23 |
| Fluticasone Propionate | Fluticasone Propionate | 36 | 1,410 | $389.00 | 25 |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 34 | 1,056 | $154.87 | 21 |
| Gabapentin | Gabapentin | 31 | 2,153 | $264.37 | 23 |
| Losartan Potassium | Losartan Potassium | 31 | 2,790 | $248.69 | 20 |
| Tramadol Hcl | Tramadol Hcl | 29 | 297 | $40.47 | 15 |
| Baclofen | Baclofen | 27 | 925 | $179.33 | 14 |
| Lisinopril | Lisinopril | 26 | 2,390 | $178.93 | 16 |
| Pantoprazole Sodium | Pantoprazole Sodium | 25 | 2,250 | $159.57 | 15 |
| Furosemide | Furosemide | 22 | 1,980 | $63.09 | 14 |
| Metoprolol Succinate | Metoprolol Succinate | 22 | 2,040 | $143.65 | 14 |
| Methylprednisolone | Methylprednisolone | 21 | 126 | $162.80 | 19 |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 21 | 1,890 | $223.62 | 13 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 19 | 349 | $186.77 | โ |
| Sertraline Hcl | Sertraline Hcl | 19 | 1,650 | $118.62 | 11 |
| Tizanidine Hcl | Tizanidine Hcl | 19 | 1,023 | $147.08 | 15 |
| Carvedilol | Carvedilol | 18 | 1,620 | $97.93 | 14 |
| Omeprazole | Omeprazole | 18 | 1,650 | $161.53 | โ |
| Glipizide | Glipizide | 18 | 1,575 | $202.79 | โ |
| Eliquis | Apixaban | 17 | 1,530 | $29,717.75 | โ |
| Metformin Hcl | Metformin Hcl | 16 | 1,425 | $73.35 | โ |
(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
Self-certified to NPPES: 2023-11-28NUCC 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
I20050720000319
GA
3476580622
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Hospitalist
Doctor of Medicine (M.D.)
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Family Medicine - Hospice and Palliative Medicine
Doctor of Medicine (M.D.)
Podiatrist - Foot & Ankle Surgery
Doctor of Podiatric Medicine
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner
Nurse Practitioner
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 2124 CANDLER RD, DECATUR, GA 300325572 (Tel: 4048360272)
Registered at 2124 CANDLER RD, DECATUR, GA 300325572 (Tel: 4048360272)
Registered at 3495 PIEDMONT RD NE, NINE PIEDMONT CENTER, ATLANTA, GA 303051717 (Tel: 4043647000)
NPI status registered as active in NPPES database
Registered at 2525 CUMBERLAND PKWY SE, DEPARTMENT OF INTERNAL MEDICINE, ATLANTA, GA 303393915 (Tel: 7704314439)
Registered at 3495 PIEDMONT RD NE, NINE PIEDMONT CENTER, ATLANTA, GA 303051773 (Tel: 4043647000)
Recorded as MARK BATES, M.D.
Internal Medicine (license number reported to NPPES: GA 047191)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Decatur
- Dr. Deslyn Olunuga, MD
- Dr. Ahmad Jingo, MD
- Dr. Sharon Bergquist, MD
- Dr. Lily Lan-Nhu Pham, MD
- Dr. William Mcgarity, MD
- Dr. Reginald Smith, MD
Mailing Address
2124 Candler Rd
Decatur, GA 300325572
Phone: 4048360272