Dr. Franco Diaz, MD

  • West Hollywood, CA
  • Internist
NPI1437113107
Medicare services, 2016
15
Part D claims, 2016
808
Affiliated sites
1
Medical group
1
State licenses
2
Practice address
452 Old Hook Rd, Emerson, NJ 07630-1381
Practice phone
Call (201) 666-3900
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Old Hook Medical Associates

Multi-specialty group site · Emerson, New Jersey

See all 2 affiliations

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Dr. Franco Diaz is an internist in West Hollywood, California

Dr. Diaz practices at Old Hook Medical Associates in Emerson, New Jersey.

Dr. Diaz's NPI, 1437113107, was assigned on April 12, 2006. Dr. Diaz graduated from Complutense University of Madrid in 1962. Dr. Diaz's New Jersey license number on file is 25MA02203500.

NPI and contact details
NPI enumeration date
April 12, 2006
NPI status
Active
Practice phone
(201) 666-3900
Professional email
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Personal email
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Mobile number
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Sex
Male
Medical school graduation
1962

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

Dr. Franco Diaz practices in Emerson and West Hollywood

Dr. Diaz's primary practice is Old Hook Medical Associates, at 452 Old Hook Rd, Emerson, NJ 07630-1381. The practice phone is (201) 666-3900. The NPI Registry lists Dr. Diaz's practice address as 8700 Beverly Blvd, West Hollywood, CA 90048.

  • Old Hook Medical AssociatesPrimary
    452 Old Hook Rd, Emerson, NJ 07630-1381Phone(201) 666-3900
  • NPI Registry address
    8700 Beverly Blvd, West Hollywood, CA 90048 · Los Angeles CountyPhone(201) 666-3900

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

Dr. Franco Diaz is affiliated with 1 site of care and 1 medical group

Dr. Diaz's primary practice is Old Hook Medical Associates in Emerson, New Jersey. Dmand AI also links Dr. Diaz to 1 medical group, named with a free account.

Old Hook Medical AssociatesMulti-specialty group site · Emerson, New JerseyPrimary
1 medical groupName with a free account
See all 2 affiliations for Dr. Diaz

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

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

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

EHR by site
SiteEHR vendor and product
Old Hook Medical AssociatesAvailable with a free account
+1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Franco Diaz is one of 16,751 internists in California

Internal medicine is Dr. Diaz's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Diaz's licenses on file in 2 states: New Jersey and Florida.

Specialties and state licenses

  • Internal medicine, New JerseyPrimaryLicense 25MA02203500 · 1968 to 2017 · taxonomy 207R00000X
  • Florida license2017 to 2022

Internists near Dr. Diaz

Counts of internists 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. Franco Diaz billed Medicare for 15 services in 2016

CMS data shows 15 Medicare services from Dr. Diaz across 1 procedure code in 2016, all of them office visits. Every service was in an office.

Medicare services, 201615
Procedure codes1

Dr. Diaz compared with the California median for internists, 2016

  • Dr. Diaz
  • California median
Medicare services
15vs 36196% below
Part D claims
808vs 42192% above

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. Diaz's most billed Medicare procedure codes, 2016

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

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

Dr. Franco Diaz's patients have a median age of 80

Across all payers, Dmand AI patient panel data puts Dr. Diaz's median patient age at 80, with 56% women.

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 80

Patient panel by sex, all payers

  • Women56%
  • Men39%

Source: Dmand AI Patient Panel Data

Dr. Franco Diaz wrote 808 Medicare Part D claims in 2016

In 2016, Dr. Diaz wrote 808 Medicare Part D claims. They cover 36 drugs, with $18,032 in total drug cost.

Part D claims, 2016808
Drugs named by CMS36
Total drug cost$18,032

Dr. Diaz's most prescribed drugs by claims, 2016

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

See all prescribing by Dr. Diaz

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

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Dr. Franco Diaz graduated from Complutense University of Madrid

Dr. Diaz graduated from Complutense University of Madrid in 1962. Dr. Diaz is a member of AMA.

  1. Medical schoolComplutense University of Madrid

Source: Dmand AI Professional Profile Data

Sources for Dr. Franco 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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
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 Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile 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. Franco 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. Franco Diaz's NPI number?

Dr. Franco Diaz's NPI number is 1437113107. It was assigned on April 12, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Franco Diaz?

Dr. Franco Diaz is an internist in West Hollywood, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Franco Diaz practice?

Dr. Diaz practices at 452 Old Hook Rd, Emerson, NJ 07630-1381. Dr. Diaz also practices at 8700 Beverly Blvd, West Hollywood, CA 90048. Dr. Diaz's primary practice is Old Hook Medical Associates in Emerson, New Jersey. Dmand AI also links Dr. Diaz to 1 medical group.

What is Dr. Franco Diaz's office phone number?

The practice phone on file for Dr. Diaz is (201) 666-3900.

What is Dr. Franco Diaz's medical license number?

Dr. Diaz's New Jersey license number on file is 25MA02203500, one of the licenses on file in 2 states.

Which states has Dr. Franco Diaz been licensed in?

Dmand AI has state licenses on file for Dr. Diaz in New Jersey (1968 to 2017) and Florida (2017 to 2022).

Does Dr. Franco Diaz accept Medicare?

Yes. CMS data shows Dr. Diaz billed Medicare for 15 services in 2016.

What services does Dr. Franco Diaz bill to Medicare?

In 2016, Dr. Diaz's most billed Medicare services were office visit, established patient (99213).

Where did Dr. Franco Diaz go to medical school?

Dr. Diaz graduated from Complutense University of Madrid in 1962.

What drugs does Dr. Franco Diaz prescribe most?

In 2016 Medicare Part D data, Dr. Diaz's most prescribed drugs by claims were Amlodipine Besylate, Simvastatin and Glimepiride.

How long has Dr. Franco Diaz been practicing?

Dr. Diaz graduated from medical school in 1962, 64 years ago.

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