Dr. Alexander Nicholas Diaz, MD

  • Saint Petersburg, FL
  • Emergency medicine physician
NPI1841751849PAC ID1759760291
Medicare services, 2024
398
Medicare patients, 2024
257
Part D claims, 2024
213
Hospital affiliations
2
Industry payments
$400
Practice address
1200 Seventh Ave N, Saint Petersburg, FL 33705
Practice phone
Call (727) 825-1100
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

BayCare St. Anthony's Hospital

Hospital · Saint Petersburg, Florida

See all 12 affiliations

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Dr. Alexander Nicholas Diaz is an emergency medicine physician in Saint Petersburg, Florida

Dr. Diaz practices at BayCare St. Anthony's Hospital in Saint Petersburg, Florida, part of BayCare Health System.

Dr. Diaz's NPI, 1841751849, was assigned on March 31, 2019. Dr. Diaz graduated from University of Central Florida College of Medicine in 2019. Dr. Diaz holds Texas license T3460.

NPI and contact details
Medicare PAC ID
1759760291
NPI enumeration date
March 31, 2019
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(727) 825-1100
Professional email
Get email
Personal email
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Mobile number
Get number
Sex
Male
Estimated age
33
Medical school graduation
2019

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Alexander Nicholas Diaz practices at BayCare St. Anthony's Hospital in Saint Petersburg, Florida

Dr. Diaz's primary practice is BayCare St. Anthony's Hospital, at 1200 Seventh Ave N, Saint Petersburg, FL 33705 in Pinellas County. The practice phone is (727) 825-1100.

Source: Dmand AI Affiliation Data

Dr. Alexander Nicholas Diaz is affiliated with 5 sites of care and 7 medical groups

Dr. Diaz's primary practice is BayCare St. Anthony's Hospital in Saint Petersburg, Florida, part of BayCare Health System. Dr. Diaz is also affiliated with HCA Florida Blake Hospital. The medical group on file is Emergency Medicine Services of Florida. Dmand AI also links Dr. Diaz to 6 more medical groups, 2 group practices and clinics and 1 behavioral health center, each named with a free account.

See all 12 affiliations for Dr. Diaz

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Alexander Nicholas Diaz's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diaz practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
BayCare St. Anthony's HospitalAvailable with a free account
+4 more sites and 6 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Alexander Nicholas Diaz is one of 3,847 emergency medicine physicians in Florida

Emergency medicine is Dr. Diaz's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Diaz is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Diaz's licenses on file in 2 states: Texas and Florida.

Specialties and state licenses

  • Emergency medicine, TexasPrimaryLicense T3460 · 2021 to 2026 · taxonomy 207P00000X
  • Florida license2024 to 2026

Emergency medicine physicians near Dr. Diaz

Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Alexander Nicholas Diaz billed Medicare for 398 services in 2024

CMS data shows 398 Medicare services from Dr. Diaz across 4 procedure codes in 2024, for 257 Medicare patients. Medicare paid $33,736 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024398
Medicare patients257
Paid by Medicare$33,736
Procedure codes4

Dr. Diaz's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 3722024: 26230%
Tests and treatments
2023: 2542024: 13646%

Dr. Diaz compared with the Florida median for emergency medicine physicians, 2024

  • Dr. Diaz
  • Florida median
Medicare services
398vs 30829% above
Medicare patients
257vs 2777% below
Part D claims
123vs 8446% above

Medians across 3,699 emergency medicine physicians in Florida with Dmand AI profiles that report each measure.

Dr. Diaz's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Diaz

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Alexander Nicholas Diaz treated 257 Medicare patients in 2024, average age 74

CMS counts 257 Medicare patients who saw Dr. Diaz in 2024. The largest group is 65 to 74, with 91 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 2.48, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Diaz's median patient age at 64, with 61% women.

Medicare patients, 2024257
Average age74
Average risk score2.48
Also on Medicaid15%

Dr. Diaz's Medicare patients by age, 2024

Dr. Diaz's Medicare patients by sex, 2024

  • Women16464%
  • Men9336%

Chronic conditions among Dr. Diaz's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis60%
  4. Ischemic heart disease54%
  5. Chronic kidney disease50%
  6. Anxiety46%
  7. Diabetes44%
  8. Heart failure42%

Share of Medicare patients with each condition. A patient can have several.

Dr. Diaz's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women61%
  • Men38%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Alexander Nicholas Diaz wrote 213 Medicare Part D claims in 2024

In 2024, Dr. Diaz wrote 213 Medicare Part D claims for 150 patients. 95% of them were for generic drugs. CMS names the drug for 123 of them, across 9 drugs with 11 or more claims each, at $1,367 in total drug cost. In 2023, CMS named 88 claims across 5 drugs.

Part D claims, 2024213
Drugs named by CMS9
Total drug cost$1,367
Part D patients150

Dr. Diaz's Part D claims by kind of drug, 2024

  • Generic203 claims95%
  • Brand-name and other10 claims5%

Dr. Diaz's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Diaz's Part D claims, 2024

  • Opioids13%28 of 213 claims
  • Antibiotics34%73 of 213 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 882024: 12340%

Drugs named by CMS: 9 in 2024, 5 in 2023.

See all prescribing by Dr. Diaz

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. Alexander Nicholas Diaz takes part in Medicare

Dr. Diaz accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Alexander Nicholas Diaz received $400 in industry payments from 2022 to 2025

CMS Open Payments shows 4 general payments to Dr. Diaz from 4 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. DePuy Synthes Sales Inc. paid the most, $130.

General payments to Dr. Diaz by program year, 2022 to 2025

Companies that paid Dr. Diaz the most, 2022 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Diaz

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Alexander Nicholas Diaz graduated from University of Central Florida College of Medicine

Dr. Diaz graduated from University of Central Florida College of Medicine in 2019.

  1. Medical schoolUniversity of Central Florida College of Medicine
  2. Board certified in emergency medicineAmerican Board of Emergency Medicine

Source: Dmand AI Professional Profile Data

Dr. Alexander Nicholas Diaz accepts plans from 19 insurance carriers

Dr. Diaz is in network with 19 carriers, including Elevance, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

  • Elevance
  • Excellus BlueCross BlueShield
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Aetna
  • Alliant Health Plans
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • +11 more carriersWith a free account

Plan types Dr. Diaz accepts, by number of carriers

  1. PPO12
  2. HMO10
  3. Medicare7
  4. POS5
  5. EPO4

Source: Dmand AI Insurance Network Data

Sources for Dr. Alexander Nicholas Diaz's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Alexander Nicholas Diaz

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Alexander Nicholas Diaz's NPI number?

Dr. Alexander Nicholas Diaz's NPI number is 1841751849. It was assigned on March 31, 2019, and it is active in the NPI Registry.

What kind of doctor is Dr. Alexander Nicholas Diaz?

Dr. Alexander Nicholas Diaz is an emergency medicine physician in Saint Petersburg, Florida. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Alexander Nicholas Diaz practice?

Dr. Diaz practices at 1200 Seventh Ave N, Saint Petersburg, FL 33705. Dr. Diaz's primary practice is BayCare St. Anthony's Hospital in Saint Petersburg, Florida, part of BayCare Health System. Dmand AI also links Dr. Diaz to 6 medical groups, 2 group practices and clinics and 1 behavioral health center.

What is Dr. Alexander Nicholas Diaz's office phone number?

The practice phone on file for Dr. Diaz is (727) 825-1100.

What is Dr. Alexander Nicholas Diaz's medical license number?

Dr. Diaz holds Texas license T3460, one of the licenses on file in 2 states.

Which states has Dr. Alexander Nicholas Diaz been licensed in?

Dmand AI has state licenses on file for Dr. Diaz in Texas (2021 to 2026) and Florida (2024 to 2026).

Which hospitals is Dr. Alexander Nicholas Diaz affiliated with?

Dr. Diaz practices at BayCare St. Anthony's Hospital in Saint Petersburg, Florida. Dr. Diaz is also affiliated with HCA Florida Blake Hospital.

What medical group is Dr. Alexander Nicholas Diaz part of?

Dr. Diaz is linked to Emergency Medicine Services of Florida. Dmand AI links Dr. Diaz to 6 more medical groups.

Does Dr. Alexander Nicholas Diaz accept Medicare?

Yes. CMS data shows Dr. Diaz billed Medicare for 398 services in 2024, and Dr. Diaz accepts Medicare assignment.

How many Medicare patients does Dr. Alexander Nicholas Diaz see?

CMS counts 257 Medicare patients who saw Dr. Diaz in 2024, with an average age of 74.

Show 7 more questionsShow fewer questions

Is Dr. Alexander Nicholas Diaz board certified?

Yes. Dr. Diaz is board certified in emergency medicine by the American Board of Emergency Medicine.

What services does Dr. Alexander Nicholas Diaz bill to Medicare?

In 2024, Dr. Diaz's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).

Where did Dr. Alexander Nicholas Diaz go to medical school?

Dr. Diaz graduated from University of Central Florida College of Medicine in 2019.

What drugs does Dr. Alexander Nicholas Diaz prescribe most?

In 2024 Medicare Part D data, Dr. Diaz's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Ondansetron ODT and Ibuprofen.

Has Dr. Alexander Nicholas Diaz received payments from drug or device companies?

CMS Open Payments shows $400 in general payments to Dr. Diaz from 4 companies from 2022 to 2025. The largest total came from DePuy Synthes Sales Inc.

How long has Dr. Alexander Nicholas Diaz been practicing?

Dr. Diaz graduated from medical school in 2019, 7 years ago.

What insurance does Dr. Alexander Nicholas Diaz accept?

Dr. Diaz is in network with 19 carriers, including Elevance, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

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