Dr. Mark J Greenwald , DDS
Dentist - General Practice β’ Sarasota, FL
5425 Fruitville Rd Ste 16
Sarasota, FL 342326418
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. Mark Greenwald is listed in NPPES under Dentist - General Practice.
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NPI assigned on April 9, 2020; this date does not establish years in practice.
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Published CMS data list 535 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Chlorhexidine Gluconate β 137 prescription fills, including refills.
- Amoxicillin β 107 prescription fills, including refills.
- Methylprednisolone β 100 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 9 records in the table Β· Guide: How to read Medicare Part D prescriber data
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More Part D prescriptions than 95% of clinicians listed under Dentist - General Practice in Sarasota, FL (2024, 79 clinicians with data). Median for this group: 54. Middle half: 28 to 96.
More Part D prescriptions than 95% of clinicians listed under Dentist - General Practice in Florida (2024, 3,880 clinicians with data). Median for this group: 59. Middle half: 28 to 120.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 24 in 2022 to 535 in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2022β2024.
Practice Location & Contact Primary Location
5425 Fruitville Rd Ste 16
Sarasota, FL 342326418
What Public CMS Data Show
Dentist - General Practice: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
535 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
$2,002 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 β by Provider and Drug, 2024.
Open Payments general payments, program year 2023
All general payments: $156.88 across 2 records.
By nature of payment
- Education: $78.44 across 1 record.
- Food and Beverage: $78.44 across 1 record.
Reporting-company totals
- Ormco Corporation: $78.44 across 1 record.
- Ormco Corporation: $78.44 across 1 record.
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 2023 (published June 30, 2026).
NPI first issued
2020
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, βDoes your provider accept Medicare as full payment?β
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.
Compared with the same specialty in Sarasota and Florida
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
More Part D prescriptions than 95% of clinicians listed under Dentist - General Practice in Sarasota, FL (2024, 79 clinicians with data). Median for this group: 54. Middle half: 28 to 96.
More Part D prescriptions than 95% of clinicians listed under Dentist - General Practice in Florida (2024, 3,880 clinicians with data). Median for this group: 59. Middle half: 28 to 120.
Part D drug cost
A higher Part D drug cost than 95% of clinicians listed under Dentist - General Practice in Sarasota, FL (2024, 79 clinicians with data). Median for this group: $159. Middle half: $83 to $305.
A higher Part D drug cost than 95% of clinicians listed under Dentist - General Practice in Florida (2024, 3,880 clinicians with data). Median for this group: $201. Middle half: $87 to $452.
129 active clinicians are listed under Dentist - General Practice with a practice address in Sarasota, FL (7,118 in Florida).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Sarasota
0% of these 129 clinicians have the CMS telehealth indicator.
0% of these 129 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 D prescriptions
Medicare Part D prescriptions increased 2129% from 24 in 2022 to 535 in 2024.
- 2022: 24
- 2023: 244
- 2024: 535
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30-day fills
30-day fills increased 2129% from 24 in 2022 to 535 in 2024.
- 2022: 24
- 2023: 246
- 2024: 535
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Part D drug cost
Part D drug cost went from $96 in 2022 to $2,002 in 2024.
- 2022: $96
- 2023: $1,036
- 2024: $2,002
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2023 only.
Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2023), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· 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 2023 (payments made January 1 β December 31, 2023): fewer than 11 records totaling $156.88.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Ormco Corporation |
Education
In-kind items and services
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HARMONIZE | General | $78.44 |
| Ormco Corporation |
Food and Beverage
In-kind items and services
|
NOBELACTIVE | General | $78.44 |
Source: CMS Open Payments, program year 2023, released June 30, 2026.
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 |
|---|---|---|---|---|---|
| Chlorhexidine Gluconate | Chlorhexidine Gluconate | 137 | 1,876 | $465.29 | 100 |
| Amoxicillin | Amoxicillin | 107 | 760 | $257.55 | 90 |
| Methylprednisolone | Methylprednisolone | 100 | 623 | $647.40 | 78 |
| Ibuprofen | Ibuprofen | 72 | 501 | $196.84 | 65 |
| Tramadol Hcl | Tramadol Hcl | 47 | 179 | $104.98 | 41 |
| Clindamycin Hcl | Clindamycin Hcl | 23 | 155 | $148.90 | 16 |
| Oxycodone Hcl | Oxycodone Hcl | 19 | 54 | $59.03 | 16 |
| Azithromycin | Azithromycin | 16 | 58 | $47.93 | 13 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 14 | 101 | $73.72 | 13 |
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: 2022-11-07NUCC Taxonomy Code: 1223G0001X
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Dentist
Doctor of Dental Medicine
Dentist
Doctor of Dental Surgery
Dentist - General Practice
Doctor of Dental Medicine
Dentist - General Practice
Doctor of Dental Medicine
Dentist - General Practice
Dentist - Dental Public Health
Doctor of Dental Surgery
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 5425 FRUITVILLE RD STE 16, SARASOTA, FL 342326418 (Tel: 9413439777)
Recorded as MARK GREENWALD, DDS
Registered at 8446 LOCKWOOD RIDGE RD, SARASOTA, FL 342432920 (Tel: 7203573159)
Registered at 8446 LOCKWOOD RIDGE RD, SARASOTA, FL 342432920 (Tel: 7203573159)
Dentist (license number reported to NPPES: FL DN27146)
NPI status registered as active in NPPES database
Registered at 13065 E 17TH AVE, AURORA, CO 800452532 (Tel: 3037246913)
Registered at 11097 E 26TH AVE, DENVER, CO 802383238 (Tel: 7203573159)
Recorded as MARK GREENWALD
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Dentist - General Practices in Sarasota
- Dr. Anthony Leonards, DMD
- Dr. Yuliet Moreno Montiel, DMD
- Dr. Mitul Patel, DMD
- Dr. Mario Romero, DDS
- Dr. Kim Shaw, DDS
- Dr. Robert Davis, DDS
Mailing Address
8446 Lockwood Ridge Rd
Sarasota, FL 342432920
Phone: 7203573159