Dr. Joshua E. Rubin, MD

  • San Diego, CA
  • Gastroenterologist
NPI1255610416PAC ID0446490866
Medicare services, 2024
403
Medicare patients, 2024
299
Part D claims, 2024
861
Publications
4
MIPS score, 2024
91
Practice address
200 W Arbor Dr, San Diego, CA 92103
Practice phone
Call (619) 543-6222
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

UCSD Hillcrest Medical Center

San Diego, California

See all 3 affiliations

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Dr. Joshua E. Rubin is a gastroenterologist in San Diego, California

Dr. Rubin practices at UCSD Hillcrest Medical Center in San Diego, California.

Dr. Rubin's NPI, 1255610416, was assigned on August 5, 2011. Dr. Rubin graduated from Vanderbilt University School Of Medicine in 2010. Dr. Rubin's California license number on file is A120297.

NPI and contact details
Medicare PAC ID
0446490866
NPI enumeration date
August 5, 2011
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(619) 543-6222
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
42
Medical school graduation
2010

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

Dr. Joshua E. Rubin practices at UCSD Hillcrest Medical Center in San Diego, California

Dr. Rubin's primary practice is UCSD Hillcrest Medical Center, at 200 W Arbor Dr, San Diego, CA 92103 in San Diego County. The practice phone is (619) 543-6222.

  • UCSD Hillcrest Medical Center
    200 W Arbor Dr, San Diego, CA 92103 · San Diego CountyPhone(619) 543-6222

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

Dr. Joshua E. Rubin is affiliated with 2 sites of care and 1 medical group

Dr. Rubin's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dr. Rubin is also affiliated with Hillcrest Medical Center. The medical group on file is UC San Diego Health.

See all 3 affiliations for Dr. Rubin

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

Dmand AI tracks the EHR system at Dr. Joshua E. Rubin's practice

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

EHR by site
SiteEHR vendor and product
UCSD Hillcrest Medical CenterAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Joshua E. Rubin is one of 1,977 gastroenterologists in California

Gastroenterology is Dr. Rubin's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Rubin is board certified in gastroenterology by the American Board of Internal Medicine. Dr. Rubin has a license on file in California.

Specialties and state licenses

  • Gastroenterology, CaliforniaPrimaryLicense A120297 · 2012 to 2025 · taxonomy 207RG0100X

Clinical focus

Dmand AI lists acid reflux, colonoscopy, gastroenteritis, gastrointestinal bleeding, hemorrhoids, intestinal diverticulosis, irritable bowel syndrome (IBS) and peptic ulcer among the conditions Dr. Rubin treats.

Gastroenterologists near Dr. Rubin

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. Joshua E. Rubin billed Medicare for 403 services in 2024

CMS data shows 403 Medicare services from Dr. Rubin across 10 procedure codes in 2024, for 299 Medicare patients. Medicare paid $49,931 for them.

Medicare services, 2024403
Medicare patients299
Paid by Medicare$49,931
Procedure codes10

Dr. Rubin's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Surgery
2023: 2312024: 2341%
Office and hospital visits
2023: 1782024: 14717%
Other services
2023: 452024: 2251%

Where Dr. Rubin's Medicare services took place, 2024

  • In an office12732%
  • In a facility27668%

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

  • Dr. Rubin
  • California median
Medicare services
403vs 58631% below
Medicare patients
299vs 302Close to median
Part D claims
749vs 38097% above

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

Dr. Rubin'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. Rubin

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Rubin and other gastroenterologists in California.

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

Dr. Joshua E. Rubin treated 299 Medicare patients in 2024, average age 70

CMS counts 299 Medicare patients who saw Dr. Rubin in 2024. The largest group is 65 to 74, with 169 patients. 69% of them have high cholesterol, and 57% have high blood pressure. 19% are also on Medicaid. Their average risk score is 1.18, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Rubin's median patient age at 53, with 61% women.

Medicare patients, 2024299
Average age70
Average risk score1.18
Also on Medicaid19%

Dr. Rubin's Medicare patients by age, 2024

Dr. Rubin's Medicare patients by sex, 2024

  • Women17358%
  • Men12642%

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

  1. High cholesterol69%
  2. High blood pressure57%
  3. Arthritis48%
  4. Mood disorders29%
  5. Anxiety27%
  6. Depression27%
  7. Osteoporosis22%
  8. Ischemic heart disease20%

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

Dr. Rubin's patients across all payers

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

Patient panel by age, all payers

Median age 53

Patient panel by sex, all payers

  • Women61%
  • Men38%

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

Dr. Joshua E. Rubin wrote 861 Medicare Part D claims in 2024

In 2024, Dr. Rubin wrote 861 Medicare Part D claims for 377 patients. 81% of them were for generic drugs. CMS names the drug for 749 of them, across 16 drugs with 11 or more claims each, at $107,880 in total drug cost. In 2023, CMS named 628 claims across 15 drugs.

Part D claims, 2024861
Drugs named by CMS16
Total drug cost$107,880
Part D patients377

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

  • Generic700 claims81%
  • Brand-name161 claims19%

Dr. Rubin'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. Rubin's Part D claims, 2024

  • Antibiotics2%20 of 861 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: 6282024: 74919%

Drugs named by CMS: 16 in 2024, 15 in 2023.

See all prescribing by Dr. Rubin

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. Joshua E. Rubin scored 91 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Rubin for performance year 2024, reported as part of a group. Dr. Rubin accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Rubin as offering telehealth. CMS counts 75 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Rubin, more than 71% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Rubin's MIPS scores, performance year 2024

  • 91of 100Final score
  • 84.1of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 74of 100Cost

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

Where Dr. Rubin ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
71st percentile75 procedures
Colonoscopy
71st percentile69 procedures

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

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. Joshua E. Rubin has 4 publications on record

Dmand AI links 4 papers to Dr. Rubin, published from 2009 to 2017. 2017 was the busiest year, with 2. Dr. Rubin's most frequent co-authors are Waseem Ahmad, MD, Ravi Chari, MD and Wilson T. Kwong, MD.

Papers4
Years published2009 to 2017

Dr. Rubin's most frequent co-authors

Recent publications by Dr. Rubin

See all 4 publications and co-authors

See who Dr. Rubin researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Rubin works with, so you can find a warm path to the right gastroenterologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Joshua E. Rubin received $238 in industry payments from 2016 to 2023

CMS Open Payments shows 7 general payments to Dr. Rubin from 6 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 60% of the total. Janssen Pharmaceuticals, Inc paid the most, $94.

General payments to Dr. Rubin by program year, 2016 to 2023

General payments to Dr. Rubin by kind, 2016 to 2023

$238in total
  • Food and beverage$14460%
  • Education$9440%

Companies that paid Dr. Rubin the most, 2016 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Rubin

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

Dr. Joshua E. Rubin graduated from Vanderbilt University School Of Medicine

Dr. Rubin graduated from Vanderbilt University School Of Medicine in 2010. Dr. Rubin is a member of AOA.

  1. Medical schoolVanderbilt 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. Joshua E. Rubin accepts plans from 13 insurance carriers

Dr. Rubin is in network with 13 carriers, including Elevance, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 8. Check the plan with the practice before a visit.

Plan types Dr. Rubin accepts, by number of carriers

  1. HMO8
  2. PPO8
  3. Medicare6
  4. EPO3
  5. POS3

Source: Dmand AI Insurance Network Data

Sources for Dr. Joshua E. Rubin'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 DataDmand AI Org Hierarchy 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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
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. Joshua E. Rubin

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. Joshua E. Rubin's NPI number?

Dr. Joshua E. Rubin's NPI number is 1255610416. It was assigned on August 5, 2011, and it is active in the NPI Registry.

What kind of doctor is Dr. Joshua E. Rubin?

Dr. Joshua E. Rubin is a gastroenterologist in San Diego, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Joshua E. Rubin practice?

Dr. Rubin practices at 200 W Arbor Dr, San Diego, CA 92103. Dr. Rubin's primary practice is UCSD Hillcrest Medical Center in San Diego, California.

What is Dr. Joshua E. Rubin's office phone number?

The practice phone on file for Dr. Rubin is (619) 543-6222.

What is Dr. Joshua E. Rubin's medical license number?

Dr. Rubin's California license number on file is A120297.

Which hospitals is Dr. Joshua E. Rubin affiliated with?

Dr. Rubin is affiliated with Hillcrest Medical Center.

What medical group is Dr. Joshua E. Rubin part of?

Dr. Rubin is linked to UC San Diego Health.

Does Dr. Joshua E. Rubin accept Medicare?

Yes. CMS data shows Dr. Rubin billed Medicare for 403 services in 2024, and Dr. Rubin accepts Medicare assignment.

Does Dr. Joshua E. Rubin offer telehealth?

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

What is Dr. Joshua E. Rubin's MIPS score?

Dr. Rubin's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Joshua E. Rubin see?

CMS counts 299 Medicare patients who saw Dr. Rubin in 2024, with an average age of 70.

Is Dr. Joshua E. Rubin board certified?

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

What services does Dr. Joshua E. Rubin bill to Medicare?

In 2024, Dr. Rubin's most billed Medicare services were surgery: digestive system (45385), surgery: digestive system (43239) and surgery: digestive system (45380).

Where did Dr. Joshua E. Rubin go to medical school?

Dr. Rubin graduated from Vanderbilt University School Of Medicine in 2010.

What drugs does Dr. Joshua E. Rubin prescribe most?

In 2024 Medicare Part D data, Dr. Rubin's most prescribed drugs by claims were Omeprazole, Sod Sulf-Potass Sulf-Mag Sulf and Esomeprazole Magnesium.

Has Dr. Joshua E. Rubin received payments from drug or device companies?

CMS Open Payments shows $238 in general payments to Dr. Rubin from 6 companies from 2016 to 2023. The largest total came from Janssen Pharmaceuticals, Inc.

How long has Dr. Joshua E. Rubin been practicing?

Dr. Rubin graduated from medical school in 2010, 16 years ago.

Does Dr. Joshua E. Rubin do research?

Dmand AI links 4 publications to Dr. Rubin, published from 2009 to 2017.

Who does Dr. Joshua E. Rubin publish with?

Dr. Rubin's most frequent co-authors are Waseem Ahmad, MD (1 shared paper), Ravi Chari, MD (1 shared paper) and Wilson T. Kwong, MD (1 shared paper).

What insurance does Dr. Joshua E. Rubin accept?

Dr. Rubin is in network with 13 carriers, including Elevance, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 8. Check the plan with the practice before a visit.

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