Dr. David Michael Reyes , MD
General Practice • Glendora, CA
657 E Arrow Hwy, Suite G
Glendora, CA 917406013
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 May 7, 2007; this date does not establish years in practice.
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Published CMS data list 2,925 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:
- Metformin Hcl — 194 prescription fills, including refills.
- Irbesartan — 188 prescription fills, including refills.
- Atorvastatin Calcium — 165 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 66 records in the table · Guide: How to read Medicare Part D prescriber data
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More Part D prescriptions than 70% of clinicians listed under General Practice in California (2024, 610 clinicians with data). Median for this group: 758. Middle half: 125 to 3,707.
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 2,492 in 2020 to 2,925 in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020–2024.
Practice Location & Contact Primary Location
657 E Arrow Hwy
Suite G
Glendora, CA 917406013
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
4,730 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
$62,786 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)
No Open Payments records are listed for this clinician for 2019–2025.
NPI first issued
2007
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.
Enrolled in Medicare (PECOS)
Dr. Reyes 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. Reyes 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 Glendora and California
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
More Part D prescriptions than 70% of clinicians listed under General Practice in California (2024, 610 clinicians with data). Median for this group: 758. Middle half: 125 to 3,707.
Too few clinicians listed under General Practice in Glendora have Medicare Part D data for 2024 to compare.
Part D drug cost
Close to the middle for clinicians listed under General Practice in California (2024, 610 clinicians with data). Median for this group: $48,894. Middle half: $2,044 to $279,308.
Too few clinicians listed under General Practice in Glendora have Medicare Part D data for 2024 to compare.
5 active clinicians are listed under General Practice with a practice address in Glendora, CA (1,963 in California).
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 D prescriptions
Medicare Part D prescriptions increased 17% from 2,492 in 2020 to 2,925 in 2024.
- 2020: 2,492
- 2021: 2,324
- 2022: 2,571
- 2023: 3,209
- 2024: 2,925
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30-day fills
30-day fills increased 30% from 3,652 in 2020 to 4,730 in 2024.
- 2020: 3,652
- 2021: 3,627
- 2022: 4,071
- 2023: 5,071
- 2024: 4,730
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Part D drug cost
Part D drug cost increased 73% from $36,343 in 2020 to $62,786 in 2024.
- 2020: $36,343
- 2021: $44,698
- 2022: $69,707
- 2023: $121,600
- 2024: $62,786
Sources: CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · 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 |
|---|---|---|---|---|---|
| Metformin Hcl | Metformin Hcl | 194 | 11,520 | $838.28 | 49 |
| Irbesartan | Irbesartan | 188 | 9,806 | $1,644.79 | 37 |
| Atorvastatin Calcium | Atorvastatin Calcium | 165 | 9,930 | $879.67 | 50 |
| Lisinopril | Lisinopril | 131 | 7,670 | $508.95 | 27 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 131 | 3,745 | $1,895.20 | 15 |
| Levothyroxine Sodium | Levothyroxine Sodium | 98 | 5,640 | $888.68 | 25 |
| Hydrochlorothiazide | Hydrochlorothiazide | 94 | 4,710 | $95.09 | 17 |
| Omeprazole | Omeprazole | 92 | 5,397 | $583.06 | 26 |
| Simvastatin | Simvastatin | 88 | 6,330 | $334.84 | 23 |
| Losartan Potassium | Losartan Potassium | 83 | 5,880 | $504.38 | 25 |
| Amlodipine Besylate | Amlodipine Besylate | 76 | 4,800 | $230.81 | 20 |
| Gabapentin | Gabapentin | 71 | 2,970 | $619.33 | 15 |
| Glipizide | Glipizide | 70 | 3,510 | $314.37 | 15 |
| Alprazolam | Alprazolam | 60 | 1,784 | $485.22 | — |
| Meloxicam | Meloxicam | 57 | 1,770 | $67.96 | 12 |
| Tamsulosin Hcl | Tamsulosin Hcl | 55 | 3,120 | $278.57 | 14 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 55 | 1,824 | $1,293.85 | 16 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 51 | 499 | $306.90 | 39 |
| Vitamin D2 | Ergocalciferol (Vitamin D2) | 47 | 1,540 | $182.77 | 11 |
| Metoprolol Succinate | Metoprolol Succinate | 46 | 2,610 | $549.43 | — |
| Sucralfate | Sucralfate | 46 | 2,010 | $444.38 | 13 |
| Duloxetine Hcl | Duloxetine Hcl | 45 | 1,890 | $373.45 | — |
| Carvedilol | Carvedilol | 44 | 1,860 | $156.01 | — |
| Atenolol | Atenolol | 41 | 2,730 | $180.35 | 12 |
| Alendronate Sodium | Alendronate Sodium | 39 | 1,819 | $195.65 | — |
(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: 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
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - GENERAL PRACTICE
I20070720000761
CA
7719088764
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 May 07, 2007.
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 Glendora
Healthcare providers in GlendoraMailing Address
657 E Arrow Hwy, Suite G
Glendora, CA 917406013
Phone: 6269631530