2026 NPPES data Foot & Ankle Surgery Podiatrist NPI 1376578922 DPM
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REX DIAZ, DPM

Foot & Ankle Surgery Podiatrist in CHESAPEAKE, Virginia. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
295
Medicare Part D claims · 136 beneficiaries · Foot & Ankle Surgery Podiatrist avg: 309
MIPS score
95.1126/100
▲ 12 pts above national avg 83.1 · [object Object]
Industry payments
$1.5K
26 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: REX DIAZ, DPM is a Foot & Ankle Surgery Podiatrist ([object Object]) practicing in CHESAPEAKE, Virginia with a Medicare Part D prescribing footprint of 295 claims across 136 beneficiaries . Their CMS MIPS Final Score of 95.1126/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $1.5K across 26 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: REX DIAZ, DPM reported a CMS MIPS final score of 95.1126 out of 100, above the 83.1 national average, and filed 295 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

REX DIAZ, DPM at a glance

High performer (top quartile)

NPI registry status

Active

Issued 07/12/2006

NPI 1376578922

Primary specialty

Foot & Ankle Surgery Podiatrist

Mid-sized

8,920 US NPIs in this specialty

Medicare Part D claims

295 5% vs specialty avg

2023 prescription claims

Specialty avg: 309

MIPS final score

95.1126/100 12.012600000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Virginia

How Foot & Ankle Surgery Podiatrist compares to other specialties among Virginia providers

Virginia providers

Foot & Ankle Surgery Podiatrist share within Virginia

1. Foot & Ankle Surgery Podiatrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Foot & Ankle Surgery Podiatrist share within Virginia

Medicare quality performance — MIPS

REX DIAZ, DPM's 2023 MIPS final score plotted against the Foot & Ankle Surgery Podiatrist national average

High performer (top quartile)
MIPS Final Score
95.1126/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Foot & Ankle Surgery Podiatrist) — 95.1126/100 vs national avg 83.1

0%100%National avg83%95.1%
MIPS final score (Foot & Ankle Surgery Podiatrist) — 95.1126/100 vs national avg 83.1

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).

REX DIAZ, DPM is a Foot & Ankle Surgery Podiatrist provider practicing in CHESAPEAKE, Virginia, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DPM. NPI: 1376578922. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

REX DIAZ, DPM appears in the CMS NPPES registry as a Foot & Ankle Surgery Podiatrist provider holding DPM credentials at 725 VOLVO PKWY STE 210, CHESAPEAKE, VA, 23320, with a listed phone of (757) 252-4200. NPI 1376578922 was issued on 07/12/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DIAZ most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 295 prescription claims written by this provider, covering 136 Medicare beneficiaries and totaling roughly $6K in drug spend, with an opioid prescribing rate of 10.8%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 95.1126/100 for the 2023 performance year (Quality 86.3184), compared with the national average of 83.1.

Foot & Ankle Surgery Podiatrist is a mid-sized specialty nationwide, with 8,920 enrolled providers across 53 states and an average of 309 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

725 VOLVO PKWY STE 210
CHESAPEAKE, VA 23320

Provider Details

NPI 1376578922
Specialty Foot & Ankle Surgery Podiatrist
Credentials DPM
Gender Male
NPI Issued 07/12/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

95.1126
Final Score
Avg: 83.1
86.3184
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where REX DIAZ, DPM bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

SENTARA MEDICAL GROUP
CHESAPEAKE, VA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for REX DIAZ, DPM. Source: openpaymentsdata.cms.gov.

Total received

$1.5K

Largest payer

Stryker Corporation

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

295
Total Claims
$6K
Total Drug Cost
136
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
330
Total Day Supply
6,820
Generic Drug Cost
$5K
Opioid Claims
32 (10.8% rate)
Antibiotic Claims
42

Patient Demographics

Average Patient Age
67.2 years
Avg HCC Risk Score
2.38
Gender Split
55% female / 45% male
Age Distribution
<65: 42, 65-74: 57, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Diclofenac Sodium
47
Gabapentin
42
Methylprednisolone
39
Ciclopirox
35
Doxycycline Hyclate
21
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
21
Terbinafine Hcl
16

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Foot & Ankle Surgery Podiatrist Overview

How REX DIAZ, DPM fits within the Foot & Ankle Surgery Podiatrist landscape nationally.

8,920
Foot & Ankle Surgery Podiatrist Providers in US
53
States with Foot & Ankle Surgery Podiatrist
309
Avg Claims per Provider

REX DIAZ, DPM's 295 claims are below the specialty average of 309.

Nearby Foot & Ankle Surgery Podiatrist Providers in Virginia

Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as DIAZ.

Compare Foot & Ankle Surgery Podiatrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is REX DIAZ, DPM's specialty?
REX DIAZ, DPM specializes in Foot & Ankle Surgery Podiatrist and practices in CHESAPEAKE, Virginia. Credentials: DPM.
How much does REX DIAZ, DPM prescribe under Medicare Part D?
In 2023, REX DIAZ, DPM wrote 295 Medicare Part D claims totaling $6K in drug costs for 136 beneficiaries.
What is REX DIAZ, DPM's Medicare quality score?
REX DIAZ, DPM has a CMS MIPS Final Score of 95.1126/100 (Quality: 86.3184). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is REX DIAZ, DPM located?
REX DIAZ, DPM is located at 725 VOLVO PKWY STE 210, CHESAPEAKE, VA, 23320. Phone: (757) 252-4200.
What is REX DIAZ, DPM's NPI number?
REX DIAZ, DPM's National Provider Identifier (NPI) is 1376578922, issued on 07/12/2006.
Does REX DIAZ, DPM prescribe opioids?
Yes, REX DIAZ, DPM had 32 opioid claims in 2023 with an opioid prescribing rate of 10.8%.
How many Foot & Ankle Surgery Podiatrist providers are there in the US?
There are 8,920 Foot & Ankle Surgery Podiatrist providers across 53 states in the US. The average Foot & Ankle Surgery Podiatrist provider writes 309 Medicare Part D claims per year.
What drugs does REX DIAZ, DPM prescribe most often?
Based on 2023 Medicare Part D data, REX DIAZ, DPM's most frequently prescribed drugs include Diclofenac Sodium, Gabapentin, Methylprednisolone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does REX DIAZ, DPM accept Medicare?
REX DIAZ, DPM appears in CMS Medicare data with 295 Part D claims and 136 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify REX DIAZ, DPM's credentials?
REX DIAZ, DPM's NPI is 1376578922 with credentials DPM. 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

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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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