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MR. OLIVER B DIAZ M.D.
NPI 1124037312
Internal Medicine in Bristol, CT

Active since August 05, 2006PECOS EnrolledAccepts Medicare Assignment
46 GOODWIN ST, BRISTOL, CT 06010(860) 589-5593(860) 584-0056 Get Directions Write a Review

NPPES record last updated: June 9, 2020. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mr. Oliver B Diaz M.d. NPPES

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

MR. OLIVER B DIAZ M.D. (NPI 1124037312) is an individual internal medicine provider in Bristol, Connecticut, licensed in Connecticut (016620) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1968).

NPPES Registry Identity

NPI1124037312
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMR. OLIVER B DIAZCredential: M.D.
Location Address46 GOODWIN STBristol, CT 06010-5807
Mailing Address46 Goodwin StBristol, CT 06010-5807 · (860) 589-5593
Phone(860) 589-5593
Fax(860) 584-0056
Sole ProprietorYes
Medical School CMSOtherGraduated 1968
Enumeration DateAugust 5, 2006
Last NPPES UpdateJune 9, 2020
NPPES CertifiedJune 9, 2020
✔ NPI 1124037312 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CT · 016620
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.
46 GOODWIN ST, Bristol, CT 06010
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Other Identifiers 10

Other83286CT · U.s. Healthcare
Other791603CT · Connecticare
Other010016620CT01CT · Blue Shield
Other500HBX031CT01CT · Blue Cross
OtherOR1837CT · Healthnet
Medicaid001166206CT
OtherP464314CT · Oxford
Other0016620600CT · Blue Care Family
Other4342196CT · Aetna
Other0192997CT · Cigna

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

Mr. Oliver B 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 ID5193794170
PECOS Enrollment IDI20040927000897
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 2

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.

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.
343 services111 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
20 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06010 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
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
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.

Referred Medical Equipment & Supplies CMS DME claims 6

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
10 suppliers60 claims110 services$5.21 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
5 suppliers18 claims25 services$1.00 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers28 claims28 services$14.84 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers40 claims40 services$63.84 avg. paid by Medicare
Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620
DME-Drugs Administered Through DME · category DG006N
4 suppliers15 claims636 services$0.07 avg. paid by Medicare
Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513
DME-Other DME · category DE000N
4 suppliers13 claims13 services$22.08 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

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

CHANG SONG CHOI MD PC
Orthopaedic Surgery
46 GOODWIN ST
BRISTOL, CT 06010
Naugatuck Valley Planning Region (860) 589-6919

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 Oliver Diaz's NPI number?

The NPI number for Oliver Diaz is 1124037312. It was assigned to this individual provider in the NPPES registry on August 5, 2006.

Where is Oliver Diaz located?

Oliver Diaz practices at 46 Goodwin St, Bristol, CT 06010. The listed phone number is (860) 589-5593.

What is Oliver Diaz's specialty?

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

Is Oliver Diaz enrolled in Medicare?

Yes. Oliver 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 Oliver Diaz was last updated on June 9, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.