Dr. Carlos Castilo Tan , MD
General Practice • Gainesville, GA
3 Washington Ave
Gainesville, GA 305014135
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 13, 2006; this date does not establish years in practice.
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Published CMS data list 2,102 Medicare Part D prescriptions, including refills, in 2014.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2014. Published rows only; this is not a quality measure.
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Published Part D records, 2014:
- Oxycodone Hcl — 361 prescription fills, including refills.
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) — 272 prescription fills, including refills.
- Gabapentin — 256 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2014. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 25 records in the table · Guide: How to read Medicare Part D prescriber data
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Medicare Part D prescriptions went from 2,252 in 2013 to 2,102 in 2014.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2013–2014.
Practice Location & Contact Primary Location
3 Washington Ave
Gainesville, GA 305014135
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
General Practice: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
2,109 standardized 30-day fills in 2014
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
$119,103 in 2014
The total cost of these prescriptions in 2014, 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, 2014.
Open Payments general payments, program year 2025
All general payments: $8,505.00 across 15 records.
By nature of payment
- Consulting Fee: $8,505.00 across 15 records.
Reporting-company totals
- CSL Plasma Inc.: $8,505.00 across 15 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).
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.
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, “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.
Compared with the same specialty in Gainesville and Georgia
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Tan are from 2014.
12 active clinicians are listed under General Practice with a practice address in Gainesville, GA (316 in Georgia).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Gainesville
0% of these 12 clinicians have the CMS telehealth indicator.
16.7% of these 12 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 stayed about the same: 2,252 in 2013 and 2,102 in 2014.
- 2013: 2,252
- 2014: 2,102
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30-day fills
30-day fills stayed about the same: 2,256 in 2013 and 2,109 in 2014.
- 2013: 2,256
- 2014: 2,109
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Part D drug cost
Part D drug cost increased 11% from $106,967 in 2013 to $119,103 in 2014.
- 2013: $106,967
- 2014: $119,103
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Industry payments (Open Payments)
Industry payments (Open Payments) increased 21% from $7,020.00 in 2021 to $8,505.00 in 2025.
- 2021: $7,020.00
- 2022: $7,560.00
- 2023: $7,020.00
- 2024: $8,640.00
- 2025: $8,505.00
Sources: CMS Medicare Part D Prescribers (2014), 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): 15 records totaling $8,505.00.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| CSL Plasma Inc. |
Consulting Fee
Cash or cash equivalent
|
— | General | $1,080.00 |
| CSL Plasma Inc. |
Consulting Fee
Cash or cash equivalent
|
— | General | $810.00 |
| CSL Plasma Inc. |
Consulting Fee
Cash or cash equivalent
|
— | General | $540.00 |
| CSL Plasma Inc. |
Consulting Fee
Cash or cash equivalent
|
— | General | $540.00 |
| CSL Plasma Inc. |
Consulting Fee
Cash or cash equivalent
|
— | General | $540.00 |
| CSL Plasma Inc. |
Consulting Fee
Cash or cash equivalent
|
— | General | $540.00 |
| CSL Plasma Inc. |
Consulting Fee
Cash or cash equivalent
|
— | General | $540.00 |
| CSL Plasma Inc. |
Consulting Fee
Cash or cash equivalent
|
— | General | $540.00 |
| CSL Plasma Inc. |
Consulting Fee
Cash or cash equivalent
|
— | General | $540.00 |
| CSL Plasma Inc. |
Consulting Fee
Cash or cash equivalent
|
— | General | $540.00 |
| CSL Plasma Inc. |
Consulting Fee
Cash or cash equivalent
|
— | General | $540.00 |
| CSL Plasma Inc. |
Consulting Fee
Cash or cash equivalent
|
— | General | $540.00 |
| CSL Plasma Inc. |
Consulting Fee
Cash or cash equivalent
|
— | General | $405.00 |
| CSL Plasma Inc. |
Consulting Fee
Cash or cash equivalent
|
— | General | $405.00 |
| CSL Plasma Inc. |
Consulting Fee
Cash or cash equivalent
|
— | General | $405.00 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2014.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Oxycodone Hcl | Oxycodone Hcl | 361 | 9,627 | $20,195.02 | 144 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 272 | 7,364 | $5,841.63 | 114 |
| Gabapentin | Gabapentin | 256 | 7,172 | $6,102.85 | 115 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 242 | 6,453 | $19,910.71 | 107 |
| Tizanidine Hcl | Tizanidine Hcl | 135 | 3,769 | $3,450.63 | 72 |
| Morphine Sulfate Er | Morphine Sulfate | 127 | 3,491 | $8,280.25 | 61 |
| Meloxicam | Meloxicam | 122 | 3,183 | $851.76 | 60 |
| Methadone Hcl | Methadone Hcl | 102 | 2,762 | $1,170.96 | 37 |
| Fentanyl | Fentanyl | 62 | 1,831 | $7,388.62 | 35 |
| Baclofen | Baclofen | 61 | 1,681 | $505.82 | 31 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 57 | 1,579 | $1,028.21 | 30 |
| Lyrica | Pregabalin | 43 | 1,190 | $12,473.47 | 22 |
| Oxycontin | Oxycodone Hcl | 40 | 1,144 | $16,558.61 | 16 |
| Methocarbamol | Methocarbamol | 30 | 866 | $380.05 | 16 |
| Endocet | Oxycodone Hcl/Acetaminophen | 25 | 681 | $2,335.11 | 15 |
| Naproxen | Naproxen | 23 | 595 | $165.68 | 14 |
| Hydromorphone Hcl | Hydromorphone Hcl | 20 | 569 | $639.58 | — |
| Lidocaine | Lidocaine | 19 | 570 | $4,416.86 | — |
| Ibuprofen | Ibuprofen | 18 | 502 | $130.32 | — |
| Zolpidem Tartrate | Zolpidem Tartrate | 18 | 385 | $94.32 | — |
| Promethazine Hcl | Promethazine Hcl | 16 | 286 | $156.86 | — |
| Tramadol Hcl | Tramadol Hcl | 15 | 418 | $128.53 | — |
| Opana Er | Oxymorphone Hcl | 14 | 398 | $6,516.88 | — |
| Diclofenac Sodium | Diclofenac Sodium | 13 | 377 | $197.15 | — |
| Morphine Sulfate | Morphine Sulfate | 11 | 308 | $183.16 | — |
Source: CMS Part D by Provider and Drug, 2014; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 208D00000X
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
Additional State Medicaid & Healthcare Payer Identifiers
Career & Practice History
NPI enumerated February 13, 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 General Practices in Gainesville
- Dr. Rodney Smith, MD
- Dr. Robert Klassen, MD
- Dr. Jason Burch, MD
- Dr. Ellis Mossaded, MD
- Linda Akbarshahi
- Dr. Oluwafemi Olukayode, MD
Mailing Address
3 Washington Ave
Gainesville, GA 305014135
Phone: 7705030221