DR. GILLIAN MACKAY M.D.
NPI 1770702177
Obstetrics & Gynecology in La Jolla, CA

Q: What is Gillian Mackay's NPI number?

The NPI number for Gillian Mackay is 1770702177. It was assigned to this individual provider in the NPPES registry on April 24, 2007.

Q: What is Gillian Mackay's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Q: When was this NPI record last updated?

The NPPES record for Gillian Mackay was last updated on November 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.

Active since April 24, 2007PECOS EnrolledAccepts Medicare Assignment

8910 VILLA LA JOLLA DR, LA JOLLA, CA 92037(800) 926-8273(888) 539-8781 Get Directions Write a Review

NPPES record last updated: November 13, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Nov 13, 2025, Aug 21, 2023 (2 updates tracked since 2023).

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About Dr. Gillian Mackay M.d. NPPES

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

DR. GILLIAN MACKAY M.D. (NPI 1770702177) is an individual obstetrics & gynecology provider in La Jolla, California, licensed in California (A113346) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2001).

NPPES Registry Identity

NPI1770702177

Entity TypeIndividualFemale

Primary Taxonomy207V00000X

Provider Legal NameDR. GILLIAN MACKAYCredential: M.D.

Location Address8910 VILLA LA JOLLA DRLa Jolla, CA 92037-1701

Mailing AddressFile 57326Los Angeles, CA 90074-7326

Phone(800) 926-8273

Fax(888) 539-8781

Sole ProprietorNo

Medical School CMSOtherGraduated 2001

Enumeration DateApril 24, 2007

Last NPPES UpdateNovember 13, 20252 updates tracked since enumeration

NPPES CertifiedNovember 13, 2025

✔ NPI 1770702177 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

License✔ Licensed in CA · A113346

Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

8910 VILLA LA JOLLA DR, La Jolla, CA 92037

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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. Gillian Mackay 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 ID9830266220

PECOS Enrollment IDI20110622000673

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

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.

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92037 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

$140.22 typical visit price

range $62.10 – $184.71

Typical copayment $35.05 (range $15.52 – $46.17)

Most-billed visit code 99204

Established Patient

$76.87 typical visit price

range $20.62 – $151.42

Typical copayment $19.21 (range $5.15 – $37.85)

Most-billed visit code 99213

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 11

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

DR. ANDREW MICHAEL WAYMENT MD

Emergency Medicine