Dr. Frank A. Gregory , MD
General Practice • Luquillo, PR
171 Calle Cpl Feliciano Rivera
Luquillo, PR 007732147
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. Frank Gregory is listed in NPPES under General Practice.
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NPI assigned on March 23, 2006; this date does not establish years in practice.
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Published CMS data list 7,041 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:
- Atorvastatin Calcium — 581 prescription fills, including refills.
- Losartan Potassium — 420 prescription fills, including refills.
- Amlodipine Besylate — 341 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 115 records in the table · Guide: How to read Medicare Part D prescriber data
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More Part D prescriptions than 80% of clinicians listed under General Practice in Luquillo, PR (2024, 11 clinicians with data). Median for this group: 781. Middle half: 25 to 5,524.
More Part D prescriptions than 80% of clinicians listed under General Practice in Puerto Rico (2024, 2,628 clinicians with data). Median for this group: 1,253. Middle half: 239 to 5,097.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 7,600 in 2020 to 7,041 in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020–2024.
Practice Location & Contact Primary Location
171 Calle Cpl Feliciano Rivera
Luquillo, PR 007732147
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
1999
What Public CMS Data Show
General Practice: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
11,577 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
$574,142 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.
Open Payments general payments, program year 2022
All general payments: $297.25 across 5 records.
By nature of payment
- Food and Beverage: $297.25 across 5 records.
Reporting-company totals
- AstraZeneca Pharmaceuticals LP: $140.01 across 2 records.
- Pfizer Inc.: $138.56 across 2 records.
- Boehringer Ingelheim Pharmaceuticals, Inc.: $18.68 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 2022 (published June 30, 2026).
Years since graduation
27 years (graduated 1999)
CMS Doctors and Clinicians data list 1999 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)
Dr. Gregory 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. Gregory 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 Luquillo and Puerto Rico
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
More Part D prescriptions than 80% of clinicians listed under General Practice in Luquillo, PR (2024, 11 clinicians with data). Median for this group: 781. Middle half: 25 to 5,524.
More Part D prescriptions than 80% of clinicians listed under General Practice in Puerto Rico (2024, 2,628 clinicians with data). Median for this group: 1,253. Middle half: 239 to 5,097.
Part D drug cost
A higher Part D drug cost than 90% of clinicians listed under General Practice in Luquillo, PR (2024, 11 clinicians with data). Median for this group: $4,416. Middle half: $395 to $167,992.
A higher Part D drug cost than 90% of clinicians listed under General Practice in Puerto Rico (2024, 2,628 clinicians with data). Median for this group: $34,007. Middle half: $2,958 to $213,188.
14 active clinicians are listed under General Practice with a practice address in Luquillo, PR (4,196 in Puerto Rico).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Luquillo
0% of these 14 clinicians have the CMS telehealth indicator.
21.4% of these 14 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: 7,600 in 2020 and 7,041 in 2024.
- 2020: 7,600
- 2021: 7,305
- 2022: 6,531
- 2023: 7,212
- 2024: 7,041
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30-day fills
30-day fills increased 11% from 10,408 in 2020 to 11,577 in 2024.
- 2020: 10,408
- 2021: 11,061
- 2022: 10,641
- 2023: 11,401
- 2024: 11,577
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Part D drug cost
Part D drug cost increased 98% from $290,058 in 2020 to $574,142 in 2024.
- 2020: $290,058
- 2021: $393,343
- 2022: $476,582
- 2023: $598,576
- 2024: $574,142
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $204.01 in 2019 to $297.25 in 2022.
- 2019: $204.01
- 2020: $129.76
- 2022: $297.25
Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2022), 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 2022 (payments made January 1 – December 31, 2022): fewer than 11 records totaling $297.25.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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NURTEC ODT | General | $125.00 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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FARXIGA | General | $124.98 |
| Boehringer Ingelheim Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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JARDIANCE | General | $18.68 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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FARXIGA | General | $15.03 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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NURTEC ODT | General | $13.56 |
Source: CMS Open Payments, program year 2022, 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 |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 581 | 33,317 | $6,066.33 | 124 |
| Losartan Potassium | Losartan Potassium | 420 | 25,221 | $4,775.01 | 90 |
| Amlodipine Besylate | Amlodipine Besylate | 341 | 20,440 | $2,071.56 | 79 |
| Famotidine | Famotidine | 303 | 11,355 | $2,090.30 | 52 |
| Levothyroxine Sodium | Levothyroxine Sodium | 280 | 13,358 | $2,899.61 | 45 |
| Gabapentin | Gabapentin | 253 | 11,407 | $2,840.07 | 41 |
| Farxiga | Dapagliflozin Propanediol | 216 | 9,466 | $183,018.50 | 40 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 187 | 11,896 | $2,895.07 | 43 |
| Metoprolol Succinate | Metoprolol Succinate | 180 | 10,740 | $3,071.17 | 37 |
| Calcitriol | Calcitriol | 171 | 7,380 | $3,628.46 | 36 |
| Ezetimibe | Ezetimibe | 166 | 9,555 | $3,893.84 | 36 |
| Lisinopril | Lisinopril | 161 | 8,850 | $884.13 | 26 |
| Alendronate Sodium | Alendronate Sodium | 133 | 5,665 | $1,132.16 | 24 |
| Finasteride | Finasteride | 131 | 8,190 | $2,296.61 | 31 |
| Omeprazole | Omeprazole | 127 | 4,875 | $895.77 | 20 |
| Xigduo Xr | Dapaglifloz Propaned/Metformin | 114 | 4,440 | $86,191.80 | 18 |
| Losartan-Hydrochlorothiazide | Losartan/Hydrochlorothiazide | 106 | 6,198 | $1,890.15 | 24 |
| Synthroid | Levothyroxine Sodium | 105 | 4,110 | $6,602.98 | 13 |
| Tamsulosin Hcl | Tamsulosin Hcl | 99 | 4,635 | $1,224.45 | 20 |
| Montelukast Sodium | Montelukast Sodium | 98 | 4,320 | $1,029.42 | 15 |
| Pentoxifylline | Pentoxifylline | 98 | 5,505 | $5,923.91 | 23 |
| Glipizide Er | Glipizide | 94 | 4,828 | $1,418.70 | 16 |
| Furosemide | Furosemide | 83 | 4,095 | $651.93 | 21 |
| Metformin Hcl Er | Metformin Hcl | 80 | 5,640 | $674.85 | 22 |
| Lantus | Insulin Glargine,hum.Rec.Anlog | 79 | 2,513 | $6,737.55 | — |
(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
Self-certified to NPPES: 2021-04-14NUCC Taxonomy Code: 208D00000X
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - GENERAL PRACTICE
I20060531000192
PR
3375554504
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 171 CALLE CPL FELICIANO RIVERA, LUQUILLO, PR 007732147 (Tel: 9394150024)
Recorded as FRANK GREGORY, MD
NPI status registered as active in NPPES database
Registered at 165 CALLE FLORIDA, LUQUILLO, PR 00773 (Tel: 7878890024)
Registered at PO BOX 77, LUQUILLO, PR 007730077 (Tel: 7878890024)
Recorded as FRANK GREGORY, M.D.
General Practice (license number reported to NPPES: PR 14843)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other General Practices in Luquillo
- Dr. Efrain Marrero Alvira, MD
- Dr. Jose Barreras, MD
- Dr. Kareen Cardona-Vicente, MD
- Dr. Vivian Villarrubia Velez, MD
- Dr. Jomarie Rivera Irizarry, MD
- Dr. Ivelisse Febres Cabrera, MD
More public profiles in Puerto Rico
Directory navigation, in NPI number order.
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- Vilma Olivieri-Beauchamp, MD Radiology - Diagnostic Radiology · San Juan
- Ineabelle Velez Gonzalez Pharmacist · San German
- Cesar Cortes-Cardona, MD Radiology - Diagnostic Radiology · San Juan
- Yoel Cruz, MD General Practice · Hatillo
- Juan Berrios Pharmacist · Corozal
- Hector Perez Feliciano, MD General Practice · San Sebastian
- Nixzaliz Rodriguez Rivera, MD Internal Medicine - Endocrinology, Diabetes & Metabolism · Ponce
- Karla Velez Rivera, MD Internal Medicine · Mayaguez
- Jose Vega-Martinez, MD Internal Medicine - Gastroenterology · San Juan
- Alexi Santos Santiago, MD Emergency Medicine · Ponce
- Miguel Roman Villanueva, MD General Practice · Hatillo
Mailing Address
Po Box 77
Luquillo, PR 007730077
Phone: 9394150024