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DR. FREDIE C DIAZ M.D.
NPI 1376578500
Internal Medicine in Albuquerque, NM

Active since July 12, 2006PECOS Enrolled
97.58/100
CMS Quality Rating
3900 LAS ESTANCIAS CT SW, ALBUQUERQUE, NM 87121(505) 727-4200(505) 727-4949 Get Directions Write a Review

NPPES record last updated: March 28, 2017. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Fredie C Diaz M.d. NPPES

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

DR. FREDIE C DIAZ M.D. (NPI 1376578500) is an individual internal medicine provider in Albuquerque, New Mexico, licensed in New Mexico (MD2016-0863) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1376578500
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. FREDIE C DIAZCredential: M.D.
Location Address3900 LAS ESTANCIAS CT SWAlbuquerque, NM 87121
Mailing Address3900 Las Estancias Ct SwAlbuquerque, NM 87121 · (505) 727-4200 · Fax (505) 727-4949
Phone(505) 727-4200
Fax(505) 727-4949
Sole ProprietorNo
Enumeration DateJuly 12, 2006
Last NPPES UpdateMarch 28, 2017
✔ NPI 1376578500 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in NM · MD2016-0863✔ Licensed in NY · 199224
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.
3900 LAS ESTANCIAS CT SW, Albuquerque, NM 87121
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Other Identifiers 5

OtherOX7112NY · Empire Bc.bs
Medicare PINOX7111NY
Other7855020NY · Aetna
Medicaid01752607NY
Medicare UPING61061NY

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Fredie C Diaz M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Fredie Diaz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southwest Medical Associates, LLC
11 mi
General Practice
6701 JEFFERSON ST NE
Albuquerque, NM 87109
  • Reassigned Medicare billing, New Mexico enrollment
  • 554 clinicians in this Medicare group
NPI 1164491072 (505) 727-6200

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 12

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.

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490
Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.
209 services36 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.
195 services137 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.
98 services98 patients
Injection, ketorolac tromethamine, per 15 mg J1885
Ketorolac tromethamine is a medication administered through injection, often used to manage moderate to severe pain. Each 15 mg dose helps to reduce hormones causing inflammation and pain in the body. It is not recommended for long-term use.
88 services21 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
84 services63 patients
Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 99439
Chronic Care Management services involve regular check-ins with healthcare professionals to manage two or more chronic conditions. It includes an additional 20 minutes of clinical staff time per month, directed by a healthcare professional, to ensure optimal health management.
84 services25 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 87121 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
$126.21 typical visit price
range $54.26 – $166.80
Typical copayment $31.55 (range $13.56 – $41.70)
Most-billed visit code 99204
Established Patient
$96.38 typical visit price
range $17.00 – $135.35
Typical copayment $24.09 (range $4.25 – $33.83)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.58/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.53
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 4

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
7 suppliers14 claims38 services$4.85 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
3 suppliers22 claims22 services$13.23 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
3 suppliers22 claims22 services$61.57 avg. paid by Medicare
Standard wheelchair K0001
DME-Wheelchairs · category DD000N
1 supplier12 claims12 services$15.41 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 4

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

EMILY JOY DNP
Nurse Practitioner (Family)
3900 LAS ESTANCIAS CT SW
ALBUQUERQUE, NM 87121
Bernalillo County (505) 918-2287
XIMENA GALARZA-RIOS MD
Family Medicine
3900 LAS ESTANCIAS CT SW
ALBUQUERQUE, NM 87121
Bernalillo County (505) 727-4200
DR. JOSE GUADALUPE HERNANDEZ-REYES MD
Internal Medicine
3900 LAS ESTANCIAS CT SW
ALBUQUERQUE, NM 87121
Bernalillo County (505) 727-4200
DR. LUIS GUILLERMO BEVERIDO M.D.
Internal Medicine
3900 LAS ESTANCIAS CT SW
ALBUQUERQUE, NM 87121
Bernalillo County (505) 727-4200

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 Fredie Diaz's NPI number?

The NPI number for Fredie Diaz is 1376578500. It was assigned to this individual provider in the NPPES registry on July 12, 2006.

Where is Fredie Diaz located?

Fredie Diaz practices at 3900 Las Estancias Ct SW, Albuquerque, NM 87121. The listed phone number is (505) 727-4200.

What is Fredie Diaz's specialty?

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

Is Fredie Diaz enrolled in Medicare?

Yes. Fredie Diaz is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Fredie Diaz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Fredie Diaz reassigns Medicare benefits to Southwest Medical Associates, LLC (Albuquerque, NM). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Fredie Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Fredie Diaz was last updated on March 28, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.