NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1487695466 M.D.
Verify on CMS → Glenn Felix Diaz, M.D.
Family Medicine Physician in Henderson, Nevada.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 147,760 in Family Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
3K
Medicare Part D claims · 508 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
92%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Glenn Felix Diaz, M.D. filed 3,361 Medicare Part D claims in 2023 as a Family Medicine Physician in Henderson, Nevada, prescribing 92% generic.
- 3K
- Part D claims, 2023
- 92%
- generic prescribing
- ≥90th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Glenn Felix Diaz, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1487695466), first enumerated 06/09/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 3,361 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1487695466 · Family Medicine Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1487695466
- ENUM-LEGACY 2006
- TAX-MEGA 148K Family Medicine
- RX-MID 3,361
- BOOK-LIGHT 1,186 in Nevada
- PHOTO-ENUM Robert Turner · 2006
Glenn Felix Diaz, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,361 ≥ 90th percentile 90% of 1,370,886 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Glenn Felix Diaz, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Glenn Felix Diaz, M.D.?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
3,361 2% vs specialty avg
Specialty distribution in Nevada
How Family Medicine Physician compares to other specialties among Nevada providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Family Medicine Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1487695466 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/09/2006 |
Brand vs generic prescribing mix · Generic-heavy
Glenn Felix Diaz, M.D. - brand share 7.0%
Family Medicine Physician average
7% brand-name claims vs 92% generic, on 3,361 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
3,361
Total Claims
$177K
Total Drug Cost
508
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 8,865
- Total Day Supply
- 261,213
- Brand vs Generic
- 7% brand / 92% generic
- Brand Drug Cost
- $140K
- Generic Drug Cost
- $35K
- Opioid Claims
- 27 (0.8% rate)
- Antibiotic Claims
- 66
Patient Demographics
- Average Patient Age
- 76.6 years
- Avg HCC Risk Score
- 1.58
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 17, 65-74: 190, 75-84: 222, 85+: 79
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Glenn Felix Diaz, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Losartan Potassium
Losartan Potassium
262 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
230 claims
- Atorvastatin Calcium
Atorvastatin Calcium
225 claims
- Amlodipine Besylate
Amlodipine Besylate
183 claims
- Levothyroxine Sodium
Levothyroxine Sodium
160 claims
- Metformin Hcl
Metformin Hcl
158 claims
- Lisinopril
Lisinopril
130 claims
- Hydrochlorothiazide 81
Hydrochlorothiazide
81 claims
| Drug | Claims |
|---|---|
| Losartan Potassium | 262 |
| Rosuvastatin Calcium | 230 |
| Atorvastatin Calcium | 225 |
| Amlodipine Besylate | 183 |
| Levothyroxine Sodium | 160 |
| Metformin Hcl | 158 |
| Lisinopril | 130 |
| Hydrochlorothiazide | 81 |
| Alendronate Sodium | 77 |
| Simvastatin | 72 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Glenn Felix Diaz, M.D. fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Glenn Felix Diaz, M.D.'s 3,361 claims are below the specialty average of 3,418.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Diaz, both outside Nevada so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in Nevada
Other clinicians with the same primary specialty enrolled in Nevada, drawn from the same CMS NPPES roster as Diaz.
One of 1,186 Family Medicine Physician providers enrolled in Nevada, 5 are shown here.
Allison Abad
Las Vegas, NV
Dr. Josef Abbo
M.D.
Las Vegas, NV
Dr. Rabbiya Abidi
MD
Henderson, NV
Dr. Cheruba Abraham
M.D.
Fernley, NV
Dr. Pamela Abraham
M.D.
Reno, NV
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Glenn Felix Diaz, M.D.'s specialty? ▼
Glenn Felix Diaz, M.D. specializes in Family Medicine Physician and practices in Henderson, Nevada. Credentials: M.D..
How much does Glenn Felix Diaz, M.D. prescribe under Medicare Part D? ▼
In 2023, Glenn Felix Diaz, M.D. wrote 3,361 Medicare Part D claims totaling $177K in drug costs for 508 beneficiaries.
Where is Glenn Felix Diaz, M.D. located? ▼
Glenn Felix Diaz, M.D. is located at 2825 SIENA HEIGHTS DR STE 101, Henderson, NV, 89052. Phone: (702) 616-7049.
What is Glenn Felix Diaz, M.D.'s NPI number? ▼
Glenn Felix Diaz, M.D.'s National Provider Identifier (NPI) is 1487695466, issued on 06/09/2006.
Does Glenn Felix Diaz, M.D. prescribe more brand-name or generic drugs? ▼
Glenn Felix Diaz, M.D.'s prescribing is 7% brand-name and 92% generic drugs by claim count, with $140K in brand drug costs.
Does Glenn Felix Diaz, M.D. prescribe opioids? ▼
Yes, Glenn Felix Diaz, M.D. had 27 opioid claims in 2023 with an opioid prescribing rate of 0.8%.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Glenn Felix Diaz, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Glenn Felix Diaz, M.D.'s most frequently prescribed drugs include Losartan Potassium, Rosuvastatin Calcium, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Glenn Felix Diaz, M.D. accept Medicare? ▼
Glenn Felix Diaz, M.D. appears in CMS Medicare data with 3,361 Part D claims and 508 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Glenn Felix Diaz, M.D.'s credentials? ▼
Glenn Felix Diaz, M.D.'s NPI is 1487695466 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.