DR. PARKER ANDREW DUNCAN DIAZ MD, MPH, FAAFP
NPI 1033434923
Family Medicine - Addiction Medicine in Santa Rosa, CA

Active since April 02, 2010PECOS EnrolledAccepts Medicare Assignment
751 LOMBARDI CT, SANTA ROSA, CA 95407(707) 547-2222(707) 547-2229 Get Directions Write a Review

NPPES record last updated: October 18, 2023. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Oct 18, 2023, Apr 3, 2023, Mar 17, 2018 and 1 more (4 updates tracked since 2017).

About Dr. Parker Andrew Duncan Diaz Md, Mph, Faafp NPPES

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

DR. PARKER ANDREW DUNCAN DIAZ MD, MPH, FAAFP (NPI 1033434923) is an individual addiction medicine provider in Santa Rosa, California, licensed in California (A118268) and active in the NPI registry since April 2010. He is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (2010).

NPPES Registry Identity

NPI1033434923
Entity TypeIndividualMale
Primary Taxonomy207QA0401X
Provider Legal NameDR. PARKER ANDREW DUNCAN DIAZCredential: MD, MPH, FAAFP
Location Address751 LOMBARDI CTSanta Rosa, CA 95407-6798
Mailing Address3569 Round Barn CirSanta Rosa, CA 95403 · (707) 303-3600 · Fax (707) 583-8796
Fax(707) 547-2229
Sole ProprietorNo
Medical School CMSUniversity Of California, Irvine, California College Of MedicineGraduated 2010
Enumeration DateApril 2, 2010
Last NPPES UpdateOctober 18, 20234 updates tracked since enumeration
NPPES CertifiedSeptember 21, 2023
NPI 1033434923 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily Medicine · Addiction MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207QA0401X
License Licensed in CA · A118268
Definition

A family medicine physician who specializes in the diagnosis and treatment of addictions.

751 LOMBARDI CT, Santa Rosa, CA 95407

Other Names 1

Former Name (1)Dr. Parker Andrew Duncan Md, Mph

Medicare Participation & PECOS Enrollment Status

Parker Duncan Diaz is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Parker Duncan Diaz is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 1850524422

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20240503001420

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Durable Medical Equipment

  • DME-Other DME (DE017N)

    Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips (HCPCS:A4253)

    6 DME suppliers used 15 Medicare Claims 34 Services Paid

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report

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.

This service was performed 14 times for 14 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $35.5 for a new patient copayment and $27.47 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 95407 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $142
  • Minimum New Patient Price $63.04
  • Maximum New Patient Price $187.01
  • Average New Patient Copayment $35.5
  • Minimum New Patient Copayment $15.76
  • Maximum New Patient Copayment $46.75

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $109.88
  • Minimum Established Patient Price $21.02
  • Maximum Established Patient Price $153.4
  • Average Established Patient Copayment $27.47
  • Minimum Established Patient Copayment $5.25
  • Maximum Established Patient Copayment $38.35

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Reviews for DR. PARKER ANDREW DUNCAN DIAZ MD, MPH, FAAFP

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Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Dentist
751 LOMBARDI CT, SUITE #A
SANTA ROSA, CA 95407
Dentist (General Practice)
751 LOMBARDI CT
SANTA ROSA, CA 95407
Nurse Practitioner (Family)
751 LOMBARDI CT, SUITE A
SANTA ROSA, CA 95407
Dentist (Dental Public Health)
751 LOMBARDI CT
SANTA ROSA, CA 95407
Nurse Practitioner (Family)
751 LOMBARDI CT, SUITE A
SANTA ROSA, CA 95407
Nurse Practitioner
751 LOMBARDI CT
SANTA ROSA, CA 95407
Nurse Practitioner (Family)
751 LOMBARDI CT, SUITE A
SANTA ROSA, CA 95407
Nurse Practitioner (Family)
751 LOMBARDI CT, SUITE A
SANTA ROSA, CA 95407
Dentist (General Practice)
751 LOMBARDI CT
SANTA ROSA, CA 95407
Counselor (Mental Health)
751 LOMBARDI CT, SUITE C
SANTA ROSA, CA 95407
Dentist (General Practice)
751 LOMBARDI CT
SANTA ROSA, CA 95407
Nurse Practitioner (Family)
751 LOMBARDI CT
SANTA ROSA, CA 95407
Pediatrics
751 LOMBARDI CT
SANTA ROSA, CA 95407
Registered Nurse
751 LOMBARDI CT
SANTA ROSA, CA 95407
Registered Nurse
751 LOMBARDI CT
SANTA ROSA, CA 95407
Registered Nurse
751 LOMBARDI CT
SANTA ROSA, CA 95407
Registered Nurse
751 LOMBARDI CT
SANTA ROSA, CA 95407
Nurse Practitioner (Family)
751 LOMBARDI CT
SANTA ROSA, CA 95407
Nurse Practitioner (Family)
751 LOMBARDI CT
SANTA ROSA, CA 95407
Nurse Practitioner (Family)
751 LOMBARDI CT
SANTA ROSA, CA 95407

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1033434923, enumerated as an "individual" on April 02, 2010.

The provider is located at 751 LOMBARDI CT SANTA ROSA, CA 95407 and the phone number is (707) 547-2222.

Family Medicine with taxonomy code 207QA0401X and a focus in Addiction Medicine.