Dr. Anthony Stewart Stack , DO
Internal Medicine โข Safety Harbor, FL
1840 Mease Dr Ste 409
Safety Harbor, FL 346956606
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. Anthony Stack is listed in NPPES under Internal Medicine.
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NPI assigned on March 21, 2018; this date does not establish years in practice.
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Published CMS data list 285 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- G2211 โ Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's: 109 service units.
- 99214 โ Established patient outpatient office visit: 82 service units.
- 99213 โ Established patient outpatient office visit: 50 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ 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 4 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 97 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:
- Letrozole โ 36 prescription fills, including refills.
- Tamoxifen Citrate โ 23 prescription fills, including refills.
- Anastrozole โ 13 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 5 records in the table ยท Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 85% of clinicians listed under Internal Medicine in Safety Harbor, FL (2024, 15 clinicians with data). Median for this group: 984. Middle half: 548 to 1,392.
Fewer Medicare Part B services than 70% of clinicians listed under Internal Medicine in Florida (2024, 5,815 clinicians with data). Median for this group: 687. Middle half: 277 to 1,489.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 94 in 2019 to 97 in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2019โ2024.
Practice Location & Contact Primary Location
1840 Mease Dr Ste 409
Safety Harbor, FL 346956606
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Jacksonville, FL. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Baycare Medical Group, Inc.. 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
Lake Erie College Of Osteopathic Medicine, Erie
2018
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
143 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 โ by Provider, 2024.
Medicare-allowed amount
About $24,152 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 โ by Provider and Service, 2024.
Paid by Medicare
About $19,071 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 โ by Provider and Service, 2024.
30-day fills
237 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
$3,159 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.
Open Payments general payments, program year 2025
All general payments: $911.45 across 35 records.
By nature of payment
- Food and Beverage: $911.45 across 35 records.
Reporting-company totals (3 largest of 15)
- Daiichi Sankyo Inc.: $193.05 across 7 records.
- AstraZeneca Pharmaceuticals LP: $145.40 across 6 records.
- Janssen Pharmaceuticals, Inc: $123.29 across 5 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
8 years (graduated 2018)
CMS Doctors and Clinicians data list 2018 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
2018
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, โDoes your provider accept Medicare as full payment?โ
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Stack 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. Stack 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 Safety Harbor and Florida
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 85% of clinicians listed under Internal Medicine in Safety Harbor, FL (2024, 15 clinicians with data). Median for this group: 984. Middle half: 548 to 1,392.
Fewer Medicare Part B services than 70% of clinicians listed under Internal Medicine in Florida (2024, 5,815 clinicians with data). Median for this group: 687. Middle half: 277 to 1,489.
Medicare-allowed amount
A lower Medicare-allowed amount than 90% of clinicians listed under Internal Medicine in Safety Harbor, FL (2024, 15 clinicians with data). Median for this group: $105,321. Middle half: $51,716 to $147,927.
A lower Medicare-allowed amount than 75% of clinicians listed under Internal Medicine in Florida (2024, 5,815 clinicians with data). Median for this group: $68,256. Middle half: $27,620 to $138,398.
Paid by Medicare
A lower Medicare payment amount than 90% of clinicians listed under Internal Medicine in Safety Harbor, FL (2024, 15 clinicians with data). Median for this group: $81,471. Middle half: $40,536 to $115,811.
A lower Medicare payment amount than 75% of clinicians listed under Internal Medicine in Florida (2024, 5,815 clinicians with data). Median for this group: $52,728. Middle half: $20,807 to $107,475.
Medicare Part D prescriptions
Fewer Part D prescriptions than 75% of clinicians listed under Internal Medicine in Safety Harbor, FL (2024, 15 clinicians with data). Median for this group: 184. Middle half: 101 to 7,060.
Fewer Part D prescriptions than 80% of clinicians listed under Internal Medicine in Florida (2024, 6,545 clinicians with data). Median for this group: 1,318. Middle half: 158 to 5,882.
Part D drug cost
A lower Part D drug cost than 70% of clinicians listed under Internal Medicine in Safety Harbor, FL (2024, 15 clinicians with data). Median for this group: $7,068. Middle half: $2,052 to $318,099.
A lower Part D drug cost than 75% of clinicians listed under Internal Medicine in Florida (2024, 6,545 clinicians with data). Median for this group: $86,865. Middle half: $8,159 to $434,445.
19 active clinicians are listed under Internal Medicine with a practice address in Safety Harbor, FL (10,165 in Florida).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Safety Harbor
21.1% of these 19 clinicians have the CMS telehealth indicator.
68.4% of these 19 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
CMS data for Medicare Part B services are available for 2024 only.
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Medicare-allowed amount
CMS data for Medicare-allowed amount are available for 2024 only.
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Paid by Medicare
CMS data for Medicare payment amount are available for 2024 only.
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Medicare Part D prescriptions
Medicare Part D prescriptions varied from year to year: 94 in 2019 and 97 in 2024.
- 2019: 94
- 2020: 139
- 2021: 51
- 2023: 17
- 2024: 97
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30-day fills
30-day fills increased 27% from 186 in 2019 to 237 in 2024.
- 2019: 186
- 2020: 221
- 2021: 105
- 2023: 36
- 2024: 237
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Part D drug cost
Part D drug cost increased 139% from $1,320 in 2019 to $3,159 in 2024.
- 2019: $1,320
- 2020: $1,382
- 2021: $37,199
- 2023: $395
- 2024: $3,159
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $208.31 in 2021 to $911.45 in 2025.
- 2021: $208.31
- 2022: $99.99
- 2023: $997.67
- 2024: $1,146.15
- 2025: $911.45
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 ยท 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 โ December 31, 2025): 35 records totaling $911.45.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Tempus AI, Inc |
Food and Beverage
In-kind items and services
|
XT CDX | General | $45.07 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
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RYBREVANT | General | $34.46 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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IBRANCE | General | $29.93 |
| Incyte Corporation |
Food and Beverage
Cash or cash equivalent
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JAKAFI | General | $29.61 |
| Daiichi Sankyo Inc. |
Food and Beverage
In-kind items and services
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Enhertu | General | $29.50 |
| Stemline Therapeutics Inc. |
Food and Beverage
In-kind items and services
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Orserdu | General | $29.03 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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ENHERTU | General | $28.66 |
| Daiichi Sankyo Inc. |
Food and Beverage
In-kind items and services
|
DATROWAY | General | $28.41 |
| Daiichi Sankyo Inc. |
Food and Beverage
In-kind items and services
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DATROWAY | General | $28.03 |
| Daiichi Sankyo Inc. |
Food and Beverage
In-kind items and services
|
Enhertu | General | $27.90 |
| Daiichi Sankyo Inc. |
Food and Beverage
In-kind items and services
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Enhertu | General | $27.66 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
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KISQALI | General | $27.07 |
| Agios Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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PYRUKYND | General | $27.05 |
| Pharmacosmos Therapeutics Inc. |
Food and Beverage
In-kind items and services
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MONOFERRIC | General | $27.00 |
| Daiichi Sankyo Inc. |
Food and Beverage
In-kind items and services
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DATROWAY | General | $26.69 |
| Incyte Corporation |
Food and Beverage
Cash or cash equivalent
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MONJUVI | General | $25.89 |
| Gilead Sciences, Inc. |
Food and Beverage
In-kind items and services
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Trodelvy | General | $25.42 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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VERZENIO | General | $25.20 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
|
KISQALI | General | $25.12 |
| Legend Biotech USA Inc. |
Food and Beverage
In-kind items and services
|
CARVYKTI | General | $25.11 |
| Daiichi Sankyo Inc. |
Food and Beverage
In-kind items and services
|
Enhertu | General | $24.86 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
RYBREVANT | General | $24.44 |
| Gilead Sciences, Inc. |
Food and Beverage
In-kind items and services
|
Trodelvy | General | $24.23 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
ENHERTU | General | $23.94 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
ENHERTU | General | $23.93 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 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 โ by Provider and Service data, 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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G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
|
109 | 83 | $40.00 | $16.08 |
|
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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82 | 75 | $312.00 | $124.75 |
|
99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
50 | 47 | $221.00 | $88.36 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
|
44 | 24 | $440.00 | $176.18 |
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 |
|---|---|---|---|---|---|
| Letrozole | Letrozole | 36 | 2,760 | $946.96 | 13 |
| Tamoxifen Citrate | Tamoxifen Citrate | 23 | 1,890 | $529.68 | 12 |
| Anastrozole | Anastrozole | 13 | 1,110 | $265.81 | โ |
| Exemestane | Exemestane | 13 | 690 | $1,085.22 | โ |
| Hydroxyurea | Hydroxyurea | 12 | 654 | $330.96 | โ |
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: 2024-09-09NUCC 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.
NUCC Taxonomy Code: 390200000X
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - HEMATOLOGY/ONCOLOGY
I20240821004937
FL
5496006298
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
Baycare Medical Group, Inc.
3231 Mcmullen Booth Rd, Safety Harbor, FL 346956607
Phone: 7277256526
Baycare Medical Group, Inc.
2461 Enterprise Rd, Clearwater, FL 337631726
Phone: 7277255060
Baycare Medical Group, Inc.
1840 Mease Dr, Safety Harbor, FL 346956606
Baycare Medical Group, Inc.
3231 Mcmullen Booth Rd, Safety Harbor, FL 346956607
Phone: 7277256526
Baycare Medical Group, Inc.
300 Pinellas St, Clearwater, FL 337563804
Phone: 7274618231
Secondary Practice Locations
653-1 W 8th St # L18
Jacksonville, FL 322096511
Phone: 9043831003
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 - Hematology
Doctor of Medicine (M.D.)
Internal Medicine - Hematology & Oncology
Doctor of Medicine (M.D.)
Internal Medicine - Hematology & Oncology
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1840 MEASE DR STE 409, SAFETY HARBOR, FL 346956606 (Tel: 7274438450)
Registered at 2995 DREW ST FL 2, CLEARWATER, FL 337593012 (Tel: 7273157496)
Student in an Organized Health Care Education/Training Program (license number reported to NPPES: FL UO5932)
NPI status registered as active in NPPES database
Registered at 653-1 W 8TH ST # L18, JACKSONVILLE, FL 322096511 (Tel: 9043831003)
Registered at 653-1 W 8TH ST # L18, JACKSONVILLE, FL 322096511 (Tel: 9043831003)
Recorded as ANTHONY STACK, DO
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Safety Harbor
- Dr. Mona Prabhu, MD
- Dr. Bindu Thomas, MD
- Dr. Robert Kaszuba, MD
- Dr. Mina Masry, MD
- Dr. Vilma Vega, MD
- Dr. Owen Linder, MD
Mailing Address
2995 Drew St Fl 2
Clearwater, FL 337593012
Phone: 7273157496