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DR. FRANK DIAZ M.D.
NPI 1851736300
Internal Medicine in Greenacres, FL

Active since May 09, 2013PECOS EnrolledAccepts Medicare Assignment
5799 LAKE WORTH RD, GREENACRES, FL 33463(561) 967-0234(561) 439-4833 Get Directions Write a Review

NPPES record last updated: March 14, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 14, 2026, May 9, 2024, Dec 6, 2021 and 2 more (5 updates tracked since 2018).

About Dr. Frank Diaz M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. FRANK DIAZ M.D. (NPI 1851736300) is an individual internal medicine provider in Greenacres, Florida, licensed in Florida (ME138337) and active in the NPI registry since May 2013. He is enrolled in Medicare PECOS and is a graduate of Other (1992).

NPPES Registry Identity

NPI1851736300
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. FRANK DIAZCredential: M.D.
Location Address5799 LAKE WORTH RDGreenacres, FL 33463-3207
Mailing Address6101 Blue Lagoon Dr Ste 400Miami, FL 33126-2051 · (305) 500-2000
Phone(561) 967-0234
Fax(561) 439-4833
Sole ProprietorNo
Medical School CMSOtherGraduated 1992
Enumeration DateMay 9, 2013
Last NPPES UpdateMarch 14, 20265 updates tracked since enumeration
NPPES CertifiedMarch 14, 2026
✔ NPI 1851736300 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in FL · ME138337
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 29,638-R (PR)
5799 LAKE WORTH RD, Greenacres, FL 33463
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Frank Diaz M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1557608445
PECOS Enrollment IDI20190131000306
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
65 services35 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
59 services37 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
27 services20 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
26 services26 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 33463 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$135.56 typical visit price
range $58.56 – $179.05
Typical copayment $33.89 (range $14.64 – $44.76)
Most-billed visit code 99204
Established Patient
$103.21 typical visit price
range $18.44 – $144.68
Typical copayment $25.80 (range $4.61 – $36.17)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. LEE SCOTT EPSTEIN DO
Internal Medicine
5799 LAKE WORTH RD
GREENACRES, FL 33463
Palm Beach County (561) 967-0234
UJJWALA K KALANGI M.D.
Family Medicine
5799 LAKE WORTH RD
GREENACRES, FL 33463
Palm Beach County (561) 967-2334
YOLDIE VINCENT APRN
Nurse Practitioner (Family)
5799 LAKE WORTH RD
GREENACRES, FL 33463
Palm Beach County (561) 967-0234
KENNETH T. ZYLSTRA PA
Physician Assistant
5799 LAKE WORTH RD
GREENACRES, FL 33463
Palm Beach County (305) 500-2000
BERLINE ESTINOBLE MD
Family Medicine
5799 LAKE WORTH RD
GREENACRES, FL 33463
Palm Beach County (561) 264-4813
CONVIVA MEDICAL CENTER MANAGEMENT LLC
Internal Medicine
5799 LAKE WORTH RD
GREENACRES, FL 33463
Palm Beach County (561) 967-0234

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Frank Diaz's NPI number?

The NPI number for Frank Diaz is 1851736300. It was assigned to this individual provider in the NPPES registry on May 9, 2013.

Where is Frank Diaz located?

Frank Diaz practices at 5799 Lake Worth Rd, Greenacres, FL 33463. The listed phone number is (561) 967-0234.

What is Frank Diaz's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Frank Diaz enrolled in Medicare?

Yes. Frank Diaz is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Frank Diaz was last updated on March 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.