Physician Profile
Unclaimed ProfileAbout LONG
Mason Hoyt Long practices internal medicine in Saint Augustine, FL. Medicare claims data shows Mason provided 1,325 services to 851 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (904) 824-6164
- Email not available
Practice Locations
301 HEALTH PARK BLVD STE 325
Saint Augustine, FL 32086
Procedures Most Often Billed to Medicare
1,325 services · 851 patients · 15 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
196 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
12 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
208 |
| Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional | Office visit | 99211 |
179 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
125 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
121 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
112 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
108 |
| Annual depression screening, 5 to 15 minutes | Billing code | G0444 |
103 |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
38 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other internal medicines in Saint Augustine 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1986 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in FL who bill this service to Medicare most often.
Common questions
What does Dr. Long specialize in?
Dr. Long is an internal medicine in Saint Augustine, FL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where is Dr. Long located?
Dr. Long is listed at 301 HEALTH PARK BLVD STE 325, Saint Augustine, FL 32086. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Long's phone number?
The number on file is (904) 824-6164. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Long?
Dr. Long's National Provider Identifier is 1790854537. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Long go to medical school?
Dr. Long attended Other, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Long have?
Dr. Long has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Long do most often?
According to Medicare billing data, Dr. Long performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Long's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Long. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.