Dr. Zackary David Anderson , DO
Internal Medicine β’ Naples, FL
350 7th St N
Naples, FL 341025754
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. Zackary Anderson is listed in NPPES under Internal Medicine.
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NPI assigned on March 23, 2022; this date does not establish years in practice.
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Published CMS data list 290 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:
- Atorvastatin Calcium β 38 prescription fills, including refills.
- Amlodipine Besylate β 35 prescription fills, including refills.
- Levothyroxine Sodium β 25 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 15 records in the table Β· 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 Naples, FL (2024, 148 clinicians with data). Median for this group: 1,032. Middle half: 154 to 4,833.
Fewer Part D prescriptions than 65% of clinicians listed under Internal Medicine in Florida (2024, 6,598 clinicians with data). Median for this group: 1,264. Middle half: 150 to 5,826.
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 47 in 2023 to 290 in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2023β2024.
Practice Location & Contact Primary Location
350 7th St N
Naples, FL 341025754
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 1 group name: Nchmd Inc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
2022
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
696 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
$16,404 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.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019β2025.
Years since graduation
4 years (graduated 2022)
CMS Doctors and Clinicians data list 2022 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, CMS release of October 2, 2026.
NPI first issued
2022
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, CMS release of October 2, 2026; 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, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Dr. Anderson 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. Anderson 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 Naples and Florida
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 Naples, FL (2024, 148 clinicians with data). Median for this group: 1,032. Middle half: 154 to 4,833.
Fewer Part D prescriptions than 65% of clinicians listed under Internal Medicine in Florida (2024, 6,598 clinicians with data). Median for this group: 1,264. Middle half: 150 to 5,826.
Part D drug cost
A lower Part D drug cost than 65% of clinicians listed under Internal Medicine in Naples, FL (2024, 148 clinicians with data). Median for this group: $78,966. Middle half: $11,425 to $512,439.
A lower Part D drug cost than 60% of clinicians listed under Internal Medicine in Florida (2024, 6,598 clinicians with data). Median for this group: $82,811. Middle half: $7,744 to $429,824.
206 active clinicians are listed under Internal Medicine with a practice address in Naples, FL (10,334 in Florida).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Naples
21.4% of these 206 clinicians have the CMS telehealth indicator.
58.3% of these 206 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 517% from 47 in 2023 to 290 in 2024.
- 2023: 47
- 2024: 290
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30-day fills
30-day fills increased 970% from 65 in 2023 to 696 in 2024.
- 2023: 65
- 2024: 696
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Part D drug cost
Part D drug cost went from $492 in 2023 to $16,404 in 2024.
- 2023: $492
- 2024: $16,404
Sources: CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
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 | 38 | 3,200 | $297.75 | 19 |
| Amlodipine Besylate | Amlodipine Besylate | 35 | 2,595 | $115.60 | 15 |
| Levothyroxine Sodium | Levothyroxine Sodium | 25 | 1,820 | $170.41 | β |
| Losartan Potassium | Losartan Potassium | 24 | 1,800 | $167.18 | β |
| Lisinopril | Lisinopril | 22 | 1,500 | $58.42 | 11 |
| Gabapentin | Gabapentin | 21 | 990 | $296.66 | β |
| Metoprolol Succinate | Metoprolol Succinate | 19 | 1,290 | $133.44 | 11 |
| Eliquis | Apixaban | 17 | 735 | $14,110.16 | β |
| Spironolactone | Spironolactone | 15 | 1,060 | $176.67 | β |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 14 | 1,200 | $286.64 | β |
| Alendronate Sodium | Alendronate Sodium | 13 | 1,092 | $151.57 | β |
| Furosemide | Furosemide | 12 | 900 | $53.36 | β |
| Hydrochlorothiazide | Hydrochlorothiazide | 12 | 902 | $64.75 | β |
| Tamsulosin Hcl | Tamsulosin Hcl | 12 | 840 | $124.32 | β |
| Pantoprazole Sodium | Pantoprazole Sodium | 11 | 930 | $196.98 | β |
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: 2025-05-19NUCC 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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20250814004255
FL
4880074764
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, CMS release of October 2, 2026
Nchmd Inc
11190 Health Park Blvd, Naples, FL 341105729
Phone: 2395527000
Nchmd Inc
350 7th St N, Naples, FL 341025754
Phone: 2394365100
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.)
Student in an Organized Health Care Education/Training Program
Student in an Organized Health Care Education/Training Program
Internal Medicine - Geriatric Medicine
Doctor of Medicine (M.D.)
Internal Medicine - Endocrinology, Diabetes & Metabolism
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Recorded as ZACKARY ANDERSON, DO
NPI status registered as active in NPPES database
Registered at 350 7TH ST N, NAPLES, FL 341025754 (Tel: 2396240940)
Registered at 350 7TH ST N, NAPLES, FL 341025754 (Tel: 2396240940)
Recorded as ZACKARY ANDERSON
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 Naples
- Dr. Viagnehy Fernandez, MD
- Dr. Pedro Martin, MD
- Dr. Teng Hui, MD
- Dr. Nancy Tejedor-Velilla, MD
- Dr. David Sommerfeld, MD
- Dr. Sunil Pandya, MD
Mailing Address
350 7th St N
Naples, FL 341025754
Phone: 2396240940