Dr. Kelsey Elizabeth Collins, MD

  • Torrance, CA
  • Gastroenterologist
NPI1912434382PAC ID8921346719
Medicare services, 2024
128
Medicare patients, 2024
49
Part D claims, 2024
183
Hospital affiliations
2
Industry payments
$110
Practice address
3445 Pacific Coast Hwy, Torrance, CA 90505
Practice phone
Call (310) 326-1666
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Pacific Endo-Surgical Center

Torrance, California

See all 8 affiliations

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Dr. Kelsey Elizabeth Collins is a gastroenterologist in Torrance, California

Dr. Collins practices at Pacific Endo-Surgical Center in Torrance, California.

Dr. Collins' NPI, 1912434382, was assigned on May 17, 2017. Dr. Collins graduated from St. George's University School of Medicine in 2017. Dr. Collins holds New York license 321164.

NPI and contact details
Medicare PAC ID
8921346719
NPI enumeration date
May 17, 2017
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(310) 326-1666
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
35
Medical school graduation
2017

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

Dr. Kelsey Elizabeth Collins practices at Pacific Endo-Surgical Center in Torrance, California

Dr. Collins' primary practice is Pacific Endo-Surgical Center, at 3445 Pacific Coast Hwy, Torrance, CA 90505 in Los Angeles County. The practice phone is (310) 326-1666.

  • Pacific Endo-Surgical Center
    3445 Pacific Coast Hwy, Torrance, CA 90505 · Los Angeles CountyPhone(310) 326-1666

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

Dr. Kelsey Elizabeth Collins is affiliated with 5 sites of care and 3 medical groups

Dr. Collins' primary practice is Pacific Endo-Surgical Center in Torrance, California. Dr. Collins is also affiliated with Torrance Memorial Medical Center. The medical group on file is Providence Medical Institute. Dmand AI also links Dr. Collins to 1 more hospital, 2 group practices and clinics and 2 medical groups, each named with a free account.

See all 8 affiliations for Dr. Collins

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

Dmand AI tracks the EHR system at Dr. Kelsey Elizabeth Collins' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Collins practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Pacific Endo-Surgical CenterAvailable with a free account
+4 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Kelsey Elizabeth Collins is one of 1,977 gastroenterologists in California

Gastroenterology is Dr. Collins' primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Collins is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Collins' licenses on file in 2 states: New York and California.

Specialties and state licenses

  • Gastroenterology, New YorkPrimaryLicense 321164 · 2023 to 2026 · taxonomy 207RG0100X
  • California license2025 to 2027

Clinical focus

Dmand AI lists acid reflux and irritable bowel syndrome (IBS) among the conditions Dr. Collins treats.

Gastroenterologists near Dr. Collins

Counts of gastroenterologists 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. Kelsey Elizabeth Collins billed Medicare for 128 services in 2024

CMS data shows 128 Medicare services from Dr. Collins across 6 procedure codes in 2024, for 49 Medicare patients. Medicare paid $12,333 for them.

Medicare services, 2024128
Medicare patients49
Paid by Medicare$12,333
Procedure codes6

Dr. Collins' Medicare services by type, 2024

  1. Office and hospital visits74
  2. Surgery54

Where Dr. Collins' Medicare services took place, 2024

  • In an office9272%
  • In a facility3628%

Dr. Collins compared with the California median for gastroenterologists, 2024

  • Dr. Collins
  • California median
Medicare services
128vs 58678% below
Medicare patients
49vs 30284% below
Part D claims
109vs 38071% below

Medians across 1,875 gastroenterologists in California with Dmand AI profiles that report each measure.

Dr. Collins' 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. Collins

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

Dr. Kelsey Elizabeth Collins treated 49 Medicare patients in 2024, average age 72

CMS counts 49 Medicare patients who saw Dr. Collins in 2024. The largest group is 65 to 74, with 25 patients. 73% of them have high cholesterol, and 59% have high blood pressure. Their average risk score is 0.85, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Collins' median patient age at 61, with 62% women.

Medicare patients, 202449
Average age72
Average risk score0.85

Dr. Collins' Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Collins' Medicare patients by sex, 2024

  • Women3673%
  • Men1327%

Chronic conditions among Dr. Collins' Medicare patients, 2024

  1. High cholesterol73%
  2. High blood pressure59%
  3. Arthritis55%
  4. Depression29%
  5. Mood disorders29%
  6. Anxiety24%

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

Dr. Collins' patients across all payers

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

Patient panel by age, all payers

Median age 61

Patient panel by sex, all payers

  • Women62%
  • Men37%

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

Dr. Kelsey Elizabeth Collins wrote 183 Medicare Part D claims in 2024

In 2024, Dr. Collins wrote 183 Medicare Part D claims for 54 patients. 67% of them were for generic drugs. CMS names the drug for 109 of them, across 3 drugs with 11 or more claims each, at $13,518 in total drug cost. In 2023, CMS named 113 claims across 5 drugs.

Part D claims, 2024183
Drugs named by CMS3
Total drug cost$13,518
Part D patients54

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

  • Generic123 claims67%
  • Brand-name60 claims33%

Dr. Collins' 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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1132024: 1094%

Drugs named by CMS: 3 in 2024, 5 in 2023.

See all prescribing by Dr. Collins

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. Kelsey Elizabeth Collins ranks in the 63rd percentile for colonoscopy in Medicare

Dr. Collins accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 48 procedures of colonoscopy by Dr. Collins, more than 63% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Collins ranks in Medicare procedure volume

Colonoscopy
63rd percentile48 procedures
Upper gastrointestinal (GI) endoscopy for acid reflux
59th percentile39 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Kelsey Elizabeth Collins received $110 in industry payments in 2023

CMS Open Payments shows 5 general payments to Dr. Collins from 2 drug and device companies in 2023. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $90.

Companies that paid Dr. Collins the most, 2023 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Collins

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

Dr. Kelsey Elizabeth Collins graduated from St. George's University School of Medicine

Dr. Collins graduated from St. George's University School of Medicine in 2017.

  1. Medical schoolSt. George's University School of Medicine
  2. Board certified in gastroenterologyAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Kelsey Elizabeth Collins accepts plans from 9 insurance carriers

Dr. Collins is in network with 9 carriers, including Aetna, United Healthcare and Cigna. PPO plans come from the most carriers, 5. Check the plan with the practice before a visit.

Plan types Dr. Collins accepts, by number of carriers

  1. PPO5
  2. HMO4
  3. Medicare4
  4. EPO2
  5. POS2
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Kelsey Elizabeth Collins'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)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. Kelsey Elizabeth Collins

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. Kelsey Elizabeth Collins' NPI number?

Dr. Kelsey Elizabeth Collins' NPI number is 1912434382. It was assigned on May 17, 2017, and it is active in the NPI Registry.

What kind of doctor is Dr. Kelsey Elizabeth Collins?

Dr. Kelsey Elizabeth Collins is a gastroenterologist in Torrance, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Kelsey Elizabeth Collins practice?

Dr. Collins practices at 3445 Pacific Coast Hwy, Torrance, CA 90505. Dr. Collins' primary practice is Pacific Endo-Surgical Center in Torrance, California. Dmand AI also links Dr. Collins to 1 hospital, 2 group practices and clinics and 2 medical groups.

What is Dr. Kelsey Elizabeth Collins' office phone number?

The practice phone on file for Dr. Collins is (310) 326-1666.

What is Dr. Kelsey Elizabeth Collins' medical license number?

Dr. Collins holds New York license 321164, one of the licenses on file in 2 states.

Which states has Dr. Kelsey Elizabeth Collins been licensed in?

Dmand AI has state licenses on file for Dr. Collins in New York (2023 to 2026) and California (2025 to 2027).

Which hospitals is Dr. Kelsey Elizabeth Collins affiliated with?

Dr. Collins is affiliated with Torrance Memorial Medical Center. Dmand AI links Dr. Collins to 1 more hospital.

What medical group is Dr. Kelsey Elizabeth Collins part of?

Dr. Collins is linked to Providence Medical Institute. Dmand AI links Dr. Collins to 2 more medical groups.

Does Dr. Kelsey Elizabeth Collins accept Medicare?

Yes. CMS data shows Dr. Collins billed Medicare for 128 services in 2024, and Dr. Collins accepts Medicare assignment.

How many Medicare patients does Dr. Kelsey Elizabeth Collins see?

CMS counts 49 Medicare patients who saw Dr. Collins in 2024, with an average age of 72.

Show 7 more questionsShow fewer questions

Is Dr. Kelsey Elizabeth Collins board certified?

Yes. Dr. Collins is board certified in gastroenterology by the American Board of Internal Medicine.

What services does Dr. Kelsey Elizabeth Collins bill to Medicare?

In 2024, Dr. Collins' most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and surgery: heart and blood vessels (36415).

Where did Dr. Kelsey Elizabeth Collins go to medical school?

Dr. Collins graduated from St. George's University School of Medicine in 2017.

What drugs does Dr. Kelsey Elizabeth Collins prescribe most?

In 2024 Medicare Part D data, Dr. Collins' most prescribed drugs by claims were Omeprazole, Sod Sulf-Potass Sulf-Mag Sulf and Linzess.

Has Dr. Kelsey Elizabeth Collins received payments from drug or device companies?

CMS Open Payments shows $110 in general payments to Dr. Collins from 2 companies from 2023 to 2023. The largest total came from Gilead Sciences, Inc.

How long has Dr. Kelsey Elizabeth Collins been practicing?

Dr. Collins graduated from medical school in 2017, 9 years ago.

What insurance does Dr. Kelsey Elizabeth Collins accept?

Dr. Collins is in network with 9 carriers, including Aetna, United Healthcare and Cigna. PPO plans come from the most carriers, 5. Check the plan with the practice before a visit.

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