JILLIAN S GRAY D.O.
NPI 1639296957
Internal Medicine in Huntington Beach, CA

Q: What is Jillian Gray's NPI number?

The NPI number for Jillian Gray is 1639296957. It was assigned to this individual provider in the NPPES registry on March 23, 2007. The provider is also known as Jillian S. Thach D.O..

Q: What is Jillian Gray's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Jillian Gray was last updated on November 13, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.

Active since March 23, 2007PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

17122 BEACH BLVD STE 203, HUNTINGTON BEACH, CA 92647(714) 941-2259(714) 455-1380 Get Directions Write a Review

NPPES record last updated: November 13, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 13, 2020, Mar 30, 2020, Aug 12, 2019 and 2 more (5 updates tracked since 2018).

On this page

About Jillian S Gray D.o. NPPES

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

JILLIAN S GRAY D.O. (NPI 1639296957) is an individual internal medicine provider in Huntington Beach, California, licensed in California (20A8683) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Other (2002).

NPPES Registry Identity

NPI1639296957

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameJILLIAN S GRAYCredential: D.O.

Location Address17122 BEACH BLVD STE 203Huntington Beach, CA 92647

Mailing Address18685 Main St Ste 101-622Huntington Beach, CA 92648-1723 · (714) 941-2259 · Fax (714) 941-2259

Phone(714) 941-2259

Fax(714) 455-1380

Sole ProprietorYes

Medical School CMSOtherGraduated 2002

Enumeration DateMarch 23, 2007

Last NPPES UpdateNovember 13, 20205 updates tracked since enumeration

NPPES CertifiedNovember 13, 2020

✔ NPI 1639296957 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · 20A8683

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.

17122 BEACH BLVD STE 203, Huntington Beach, CA 92647

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Other Names 1

Former Name (1)Jillian S. Thach D.o.

Secondary Practice Locations 3

Location 117400 Irvine Blvd Ste MTustin, CA 92780-3030 · Phone (714) 941-2259 ext. 4 · Fax (714) 455-1380

Location 218685 Main St Ste 101-176Huntington Beach, CA 92648-1723 · Phone (714) 941-2259 ext. 4 · Fax (714) 594-3861

Location 318821 Delaware St Ste 204Huntington Beach, CA 92648-1936 · Phone (714) 941-2259 ext. 6 · Fax (714) 455-1380

Other Identifiers 1

Medicaid00AX86830CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Jillian S Gray D.o. 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 ID7113931445

PECOS Enrollment IDI20060125001027

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 Reassignments

Medicare enrollment records show Jillian Gray reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Gn Medical Associates, Inc.

6.3 mi

Family Medicine

3090 BRISTOL ST STE 200
Costa Mesa, CA 92626

Reassigned Medicare billing, California enrollment
103 clinicians in this Medicare group

NPI 1275576522 (888) 789-9585

Careconnectmd Ca PC

6.3 mi

Family Medicine

3090 BRISTOL ST STE 200
Costa Mesa, CA 92626

Reassigned Medicare billing, California enrollment
194 clinicians in this Medicare group

NPI 1366063125 (888) 789-9585

Dr Mona Shah Professional Corporation

18 mi

Internal Medicine

1600 S GAFFEY ST
San Pedro, CA 90731

Reassigned Medicare billing, California enrollment
17 clinicians in this Medicare group

NPI 1053643171 (310) 548-0201

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 19

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.

235 services79 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

100 services53 patients

Telephone medical discussion with physician, 5-10 minutes 99441

A telephone medical discussion with a physician is a brief, 5-10 minute call where you can discuss your health concerns. It's a convenient way to receive medical advice without needing to visit a clinic. It's important to prepare questions in advance to make the most of this time.

100 services52 patients

Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211

This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.

96 services50 patients

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.

72 services54 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.

72 services48 patients

Face-to-face behavioral counseling for obesity, 15 minutes G0447

This is a 15-minute consultation where a healthcare professional discusses your eating habits, physical activity, and goals to help manage your weight. The aim is to provide personalized strategies to promote a healthier lifestyle and combat obesity.

58 services23 patients

Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes G0446

This is a yearly, personal consultation focused on behaviors affecting heart health. It lasts 15 minutes and may cover topics like diet, exercise, and stress management. It's about learning healthy habits to protect your heart.

46 services46 patients

Telephone medical discussion with physician, 21-30 minutes 99443

This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.

42 services22 patients

Removal of inflamed or infected skin, up to 10% of body surface 11000

This procedure involves the surgical removal of inflamed or infected skin covering up to 10% of your body surface. It's done to prevent the spread of infection and promote healing. Local or general anesthesia is used to ensure comfort during the process.

37 services13 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.

36 services36 patients

Annual depression screening, 5 to 15 minutes G0444

An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.

34 services34 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

31 services12 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

20 services20 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

18 services13 patients

Advance care planning, first 30 minutes 99497

Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.

14 services14 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

14 services14 patients

Influenza vaccine split virus, preservative free 90662

The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.

13 services13 patients

Urinalysis, manual test 81002

A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.

12 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92647 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

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

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.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

100

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims

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

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

1 supplier11 claims11 services$14.86 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.

GOT IT MEDICINE

Internal Medicine

17122 BEACH BLVD STE 203
HUNTINGTON BEACH, CA 92647

Orange County (714) 941-2259

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 Jillian Gray's NPI number?

The NPI number for Jillian Gray is 1639296957. It was assigned to this individual provider in the NPPES registry on March 23, 2007. The provider is also known as Jillian S. Thach D.O..

Where is Jillian Gray located?

Jillian Gray practices at 17122 Beach Blvd Ste 203, Huntington Beach, CA 92647. The listed phone number is (714) 941-2259.

What is Jillian Gray's specialty?

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

Is Jillian Gray enrolled in Medicare?

Yes. Jillian Gray 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.

Which organizations bill Medicare for Jillian Gray's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jillian Gray reassigns Medicare benefits to 3 organizations: Gn Medical Associates, Inc. (Costa Mesa, CA), Careconnectmd Ca PC (Costa Mesa, CA) and Dr Mona Shah Professional Corporation (San Pedro, CA). Each 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 Jillian Gray'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 Jillian Gray was last updated on November 13, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.