Mason Hoyt Long
Internal Medicine • Saint Augustine, FL
301 Health Park Blvd Ste 325
Saint Augustine, FL 320865771
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 November 7, 2006; this date does not establish years in practice.
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Published CMS data list 1,325 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99214 — Established patient outpatient office visit: 208 service units.
- 36415 — Insertion of needle into vein for collection of blood sample: 196 service units.
- 99211 — outpatient office visit: 179 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® 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 15 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 2,864 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Levothyroxine Sodium — 186 prescription fills, including refills.
- Losartan Potassium — 151 prescription fills, including refills.
- Atorvastatin Calcium — 146 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 82 records in the table · Guide: How to read Medicare Part D prescriber data
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More 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 – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 2,765 in 2020 to 1,325 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
301 Health Park Blvd Ste 325
Saint Augustine, FL 320865771
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
1986
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
177 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 – by Provider, 2024.
Medicare-allowed amount
About $106,922 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 – by Provider and Service, 2024.
Paid by Medicare
About $81,426 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 – by Provider and Service, 2024.
30-day fills
5,937 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
$110,470 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 – by Provider and Drug, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $117.65 in 2021
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2021.
Years since graduation
40 years (graduated 1986)
CMS Doctors and Clinicians data list 1986 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
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.
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, “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.
Enrolled in Medicare (PECOS)
Mason Long 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 Mason Long 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 Saint Augustine and Florida
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More 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.
Too few clinicians listed under Internal Medicine in Saint Augustine have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 65% 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.
Too few clinicians listed under Internal Medicine in Saint Augustine have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 65% 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.
Too few clinicians listed under Internal Medicine in Saint Augustine have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
Close to the middle for 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.
Too few clinicians listed under Internal Medicine in Saint Augustine have Medicare Part D data for 2024 to compare.
Part D drug cost
Close to the middle for 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.
Too few clinicians listed under Internal Medicine in Saint Augustine have Medicare Part D data for 2024 to compare.
6 active clinicians are listed under Internal Medicine with a practice address in Saint Augustine, FL (10,165 in Florida).
Addresses are self-reported to NPPES and may be out of date.
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 52% from 2,765 in 2020 to 1,325 in 2024.
- 2020: 2,765
- 2021: 2,538
- 2022: 1,805
- 2023: 1,749
- 2024: 1,325
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Medicare-allowed amount
Medicare-allowed amount decreased 34% from $161,381 in 2020 to $106,922 in 2024.
- 2020: $161,381
- 2021: $182,932
- 2022: $136,432
- 2023: $151,158
- 2024: $106,922
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Paid by Medicare
Paid by Medicare decreased 35% from $125,522 in 2020 to $81,426 in 2024.
- 2020: $125,522
- 2021: $143,337
- 2022: $104,803
- 2023: $118,149
- 2024: $81,426
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 14% from 3,330 in 2020 to 2,864 in 2024.
- 2020: 3,330
- 2021: 3,306
- 2022: 2,989
- 2023: 2,770
- 2024: 2,864
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30-day fills
30-day fills decreased 10% from 6,614 in 2020 to 5,937 in 2024.
- 2020: 6,614
- 2021: 6,547
- 2022: 6,076
- 2023: 5,841
- 2024: 5,937
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Part D drug cost
Part D drug cost increased 11% from $99,109 in 2020 to $110,470 in 2024.
- 2020: $99,109
- 2021: $115,311
- 2022: $92,040
- 2023: $99,489
- 2024: $110,470
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2021 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2021), 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 2021 (payments made January 1 – December 31, 2021): fewer than 11 records totaling $117.65.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| LivaNova USA, Inc. |
Food and Beverage
In-kind items and services
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VNS - Symmetry | General | $117.65 |
Source: CMS Open Payments, program year 2021, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 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 – by Provider and Service data, 2017–2024; 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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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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208 | 124 | $195.00 | $124.23 |
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36415
Insertion of needle into vein for collection of blood sample
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196 | 107 | $10.00 | $8.65 |
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99211
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional
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179 | 104 | $34.00 | $22.03 |
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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
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125 | 77 | $273.00 | $175.67 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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121 | 121 | $198.00 | $125.28 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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112 | 61 | $137.00 | $86.02 |
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99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
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108 | 32 | $150.00 | $115.27 |
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G0444
Annual depression screening, 5 to 15 minutes
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103 | 103 | $50.00 | $17.90 |
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99239
Hospital discharge day management, more than 30 minutes
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38 | 25 | $140.00 | $110.83 |
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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
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29 | 17 | $125.00 | $76.83 |
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G0181
Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow
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29 | 16 | $130.00 | $101.64 |
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G0180
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and
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24 | 18 | $125.00 | $51.53 |
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
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21 | 16 | $225.00 | $168.60 |
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81002
Urinalysis, manual test
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20 | 19 | $10.00 | $3.41 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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12 | 11 | $40.00 | $13.83 |
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 |
|---|---|---|---|---|---|
| Levothyroxine Sodium | Levothyroxine Sodium | 186 | 15,443 | $2,208.67 | 51 |
| Losartan Potassium | Losartan Potassium | 151 | 11,679 | $2,006.41 | 39 |
| Atorvastatin Calcium | Atorvastatin Calcium | 146 | 11,479 | $1,739.61 | 39 |
| Alprazolam | Alprazolam | 119 | 4,185 | $778.97 | 24 |
| Amlodipine Besylate | Amlodipine Besylate | 88 | 7,500 | $955.66 | 26 |
| Metoprolol Succinate | Metoprolol Succinate | 84 | 5,467 | $1,052.82 | 19 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 76 | 6,300 | $1,228.75 | 22 |
| Gabapentin | Gabapentin | 70 | 3,180 | $1,452.66 | 15 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 68 | 1,977 | $2,128.21 | 12 |
| Omeprazole | Omeprazole | 67 | 5,267 | $906.64 | 17 |
| Lisinopril | Lisinopril | 64 | 4,490 | $500.89 | 18 |
| Sertraline Hcl | Sertraline Hcl | 63 | 4,411 | $706.49 | 18 |
| Pantoprazole Sodium | Pantoprazole Sodium | 63 | 4,410 | $784.39 | 21 |
| Metformin Hcl | Metformin Hcl | 52 | 3,796 | $547.46 | 16 |
| Simvastatin | Simvastatin | 49 | 4,410 | $761.15 | 16 |
| Ezetimibe | Ezetimibe | 45 | 4,050 | $1,828.93 | 13 |
| Lorazepam | Lorazepam | 44 | 1,801 | $460.10 | — |
| Tamsulosin Hcl | Tamsulosin Hcl | 44 | 2,568 | $561.67 | — |
| Hydrochlorothiazide | Hydrochlorothiazide | 43 | 3,090 | $191.38 | 11 |
| Furosemide | Furosemide | 41 | 2,008 | $104.09 | 11 |
| Pravastatin Sodium | Pravastatin Sodium | 41 | 3,120 | $616.33 | 13 |
| Duloxetine Hcl | Duloxetine Hcl | 40 | 2,100 | $910.79 | 11 |
| Carvedilol | Carvedilol | 39 | 2,190 | $352.96 | — |
| Zolpidem Tartrate | Zolpidem Tartrate | 39 | 1,470 | $238.39 | — |
| Buspirone Hcl | Buspirone Hcl | 38 | 1,902 | $392.75 | — |
(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
NUCC 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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20100422000258
FL
0345377487
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Career & Practice History
NPI enumerated November 07, 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 Internal Medicine Providers in Saint Augustine
- Dr. Jawad Farhat, MD
- Dr. Girish Ghade, MD
- Dr. Sanad Alshareef, DO
- Dr. Bryant Wilson, MD
- Dr. Caitlin Bass, MD
Mailing Address
301 Health Park Blvd Ste 325
Saint Augustine, FL 320865771
Phone: 9048246164