Dr. Jillian S. Gray, DO

  • San Pedro, CA
  • Internist
NPI1639296957PAC ID7113931445
Medicare services, 2024
1,190
Medicare patients, 2024
101
Part D claims, 2024
4,284
MIPS score, 2024
100
Hospital affiliations
2
Practice address
1600 S Gaffey St, San Pedro, CA 90731
Practice phone
Call (310) 548-0201
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Dr Mona Shah Professional Corporation

San Pedro, California

See all 13 affiliations

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Dr. Jillian S. Gray is an internist in San Pedro, California

Dr. Gray practices at Dr Mona Shah Professional Corporation in San Pedro, California.

Dr. Gray's NPI, 1639296957, was assigned on March 23, 2007. Dr. Gray graduated from WesternU College of Osteopathic Medicine of the Pacific in 2002. Dr. Gray holds California license 20A8683.

NPI and contact details
Medicare PAC ID
7113931445
NPI enumeration date
March 23, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(310) 548-0201
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
50
Medical school graduation
2002

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Jillian S. Gray practices at Dr Mona Shah Professional Corporation in San Pedro, California

Dr. Gray's primary practice is Dr Mona Shah Professional Corporation, at 1600 S Gaffey St, San Pedro, CA 90731 in Los Angeles County. The practice phone is (310) 548-0201.

  • Dr Mona Shah Professional Corporation
    1600 S Gaffey St, San Pedro, CA 90731 · Los Angeles CountyPhone(310) 548-0201

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Jillian S. Gray is affiliated with 10 sites of care and 3 medical groups

Dr. Gray's primary practice is Dr Mona Shah Professional Corporation in San Pedro, California. Dr. Gray is also affiliated with Providence Little Company of Mary Medical Center San Pedro. The medical group on file is GeriNet Medical Associates. Dmand AI also links Dr. Gray to 1 more hospital, 3 group practices and clinics, 2 skilled nursing facilities, 2 medical groups, 1 physician office and 1 home health agency, each named with a free account.

See all 13 affiliations for Dr. Gray

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Jillian S. Gray's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gray practices, 9 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Dr Mona Shah Professional CorporationAvailable with a free account
+9 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Jillian S. Gray is one of 16,751 internists in California

Internal medicine is Dr. Gray's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Gray is board certified in internal medicine by the AOA Board of Internal Medicine. Dr. Gray is licensed in California.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense 20A8683 · taxonomy 207R00000X

Clinical focus

Dmand AI lists asthma, bronchitis, chronic anemia, chronic diabetes, chronic hypertension, chronic kidney disease, chronic obstructive pulmonary disease (COPD) and contact dermatitis among the conditions Dr. Gray treats.

Internists near Dr. Gray

Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Jillian S. Gray billed Medicare for 1,190 services in 2024

CMS data shows 1,190 Medicare services from Dr. Gray across 20 procedure codes in 2024, for 101 Medicare patients. Medicare paid $70,166 for them. Every service was in an office.

Medicare services, 20241,190
Medicare patients101
Paid by Medicare$70,166
Procedure codes20

Dr. Gray's Medicare services by type, 2022 to 2024

  • 2022
  • 2024
Office and hospital visits
2022: 732024: 605729%
Other services
2022: 02024: 328
Tests and treatments
2022: 02024: 116
Surgery
2022: 02024: 109
Imaging
2022: 02024: 20
Lab and pathology
2022: 02024: 12

Dr. Gray compared with the California median for internists, 2024

  • Dr. Gray
  • California median
Medicare services
1,190vs 3613.3 times
Medicare patients
101vs 15133% below
Part D claims
3,390vs 4218.1 times

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. Gray's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Gray

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Jillian S. Gray treated 101 Medicare patients in 2024, average age 74

CMS counts 101 Medicare patients who saw Dr. Gray in 2024. The largest group is 65 to 74, with 41 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 1.51, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Gray's median patient age at 60, with 74% women.

Medicare patients, 2024101
Average age74
Average risk score1.51
Also on Medicaid25%

Dr. Gray's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Gray's Medicare patients by sex, 2024

  • Women6968%
  • Men3232%

Chronic conditions among Dr. Gray's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis55%
  4. Chronic kidney disease47%
  5. Depression41%
  6. Mood disorders41%
  7. Anxiety39%
  8. COPD33%

Share of Medicare patients with each condition. A patient can have several.

Dr. Gray's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 60

Patient panel by sex, all payers

  • Women74%
  • Men26%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Jillian S. Gray wrote 4,284 Medicare Part D claims in 2024

In 2024, Dr. Gray wrote 4,284 Medicare Part D claims for 285 patients. 85% of them were for generic drugs. CMS names the drug for 3,390 of them, across 107 drugs with 11 or more claims each, at $402,065 in total drug cost. In 2023, CMS named 1,353 claims across 57 drugs.

Part D claims, 20244,284
Drugs named by CMS107
Total drug cost$402,065
Part D patients285

Dr. Gray's Part D claims by kind of drug, 2024

  • Generic3,620 claims85%
  • Brand-name636 claims15%
  • Other28 claims1%

Dr. Gray's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Gray's Part D claims, 2024

  • Opioids4%172 of 4,284 claims
  • Antibiotics4%189 of 4,284 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1,3532024: 3,390151%

Drugs named by CMS: 107 in 2024, 57 in 2023.

See all prescribing by Dr. Gray

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Jillian S. Gray scored 100 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Gray for performance year 2024, reported as part of a group. Dr. Gray accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Gray as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Gray's MIPS scores, performance year 2024

  • 100of 100Final score
  • 100of 100Quality
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Jillian S. Gray received $3,796 in industry payments from 2017 to 2025

CMS Open Payments shows 98 general payments to Dr. Gray from 23 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $828.

General payments to Dr. Gray by program year, 2017 to 2025

Companies that paid Dr. Gray the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Gray

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Jillian S. Gray graduated from WesternU College of Osteopathic Medicine of the Pacific

Dr. Gray graduated from WesternU College of Osteopathic Medicine of the Pacific in 2002. Dr. Gray is a member of ACP and AOA.

  1. Medical schoolWesternU College of Osteopathic Medicine of the Pacific
  2. Board certified in internal medicineAOA Board of Internal Medicine
  3. Board certified in 2003 - 2026CA State License
  4. Board certified in 2009 - 2010WA State License

Source: Dmand AI Professional Profile Data

Dr. Jillian S. Gray accepts plans from 15 insurance carriers

Dr. Gray is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +7 more carriersWith a free account

Plan types Dr. Gray accepts, by number of carriers

  1. PPO9
  2. Medicare8
  3. HMO7
  4. POS5
  5. EPO4

Source: Dmand AI Insurance Network Data

Sources for Dr. Jillian S. Gray's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Jillian S. Gray

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Jillian S. Gray's NPI number?

Dr. Jillian S. Gray's NPI number is 1639296957. It was assigned on March 23, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Jillian S. Gray?

Dr. Jillian S. Gray is an internist in San Pedro, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Jillian S. Gray practice?

Dr. Gray practices at 1600 S Gaffey St, San Pedro, CA 90731. Dr. Gray's primary practice is Dr Mona Shah Professional Corporation in San Pedro, California. Dmand AI also links Dr. Gray to 1 hospital, 3 group practices and clinics, 2 skilled nursing facilities, 2 medical groups, 1 physician office and 1 home health agency.

What is Dr. Jillian S. Gray's office phone number?

The practice phone on file for Dr. Gray is (310) 548-0201.

What is Dr. Jillian S. Gray's medical license number?

Dr. Gray holds California license 20A8683.

Which hospitals is Dr. Jillian S. Gray affiliated with?

Dr. Gray is affiliated with Providence Little Company of Mary Medical Center San Pedro. Dmand AI links Dr. Gray to 1 more hospital.

What medical group is Dr. Jillian S. Gray part of?

Dr. Gray is linked to GeriNet Medical Associates. Dmand AI links Dr. Gray to 2 more medical groups.

Does Dr. Jillian S. Gray accept Medicare?

Yes. CMS data shows Dr. Gray billed Medicare for 1,190 services in 2024, and Dr. Gray accepts Medicare assignment.

Does Dr. Jillian S. Gray offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Gray as offering telehealth services.

What is Dr. Jillian S. Gray's MIPS score?

Dr. Gray's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.

Show 8 more questionsShow fewer questions

How many Medicare patients does Dr. Jillian S. Gray see?

CMS counts 101 Medicare patients who saw Dr. Gray in 2024, with an average age of 74.

Is Dr. Jillian S. Gray board certified?

Yes. Dr. Gray is board certified in internal medicine by the AOA Board of Internal Medicine.

What services does Dr. Jillian S. Gray bill to Medicare?

In 2024, Dr. Gray's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and office visit, established patient (99215).

Where did Dr. Jillian S. Gray go to medical school?

Dr. Gray graduated from WesternU College of Osteopathic Medicine of the Pacific in 2002.

What drugs does Dr. Jillian S. Gray prescribe most?

In 2024 Medicare Part D data, Dr. Gray's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Albuterol Sulfate Hfa.

Has Dr. Jillian S. Gray received payments from drug or device companies?

CMS Open Payments shows $3,796 in general payments to Dr. Gray from 23 companies from 2017 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.

How long has Dr. Jillian S. Gray been practicing?

Dr. Gray graduated from medical school in 2002, 24 years ago.

What insurance does Dr. Jillian S. Gray accept?

Dr. Gray is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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