Dr. Sonia Ramamoorthy, MD

  • San Diego, CA
  • General surgeon
NPI1801812656PAC ID7810953635
Medicare services, 2024
167
Medicare patients, 2024
127
Part D claims, 2024
52
Publications
121
Clinical trials
2
Practice address
200 W Arbor Dr, San Diego, CA 92103
Practice phone
Call (619) 543-6222
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UCSD Hillcrest Medical Center

San Diego, California

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Dr. Sonia Ramamoorthy is a general surgeon in San Diego, California

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

Dr. Ramamoorthy's NPI, 1801812656, was assigned on July 14, 2006. Dr. Ramamoorthy graduated from Boston University School Of Medicine in 1996. Dr. Ramamoorthy holds California license A65709.

NPI and contact details
Medicare PAC ID
7810953635
NPI enumeration date
July 14, 2006
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
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Sex
Female
Estimated age
56
Medical school graduation
1996

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

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

Dr. Ramamoorthy'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. Sonia Ramamoorthy is affiliated with 2 sites of care and 1 medical group

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

See all 3 affiliations for Dr. Ramamoorthy

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. Sonia Ramamoorthy's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ramamoorthy 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. Sonia Ramamoorthy is one of 2,926 general surgeons in California

Surgery is Dr. Ramamoorthy's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Ramamoorthy is board certified in colon & rectal surgery by the American Board of Colon and Rectal Surgery. Dr. Ramamoorthy is licensed in California.

Specialties and state licenses

  • Surgery, CaliforniaPrimaryLicense A65709 · 1998 to 2026 · taxonomy 208600000X

Clinical focus

Dmand AI lists colonoscopy, colon removal, gastrointestinal obstruction and hemorrhoids among the conditions Dr. Ramamoorthy treats.

General surgeons near Dr. Ramamoorthy

Counts of general surgeons 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. Sonia Ramamoorthy billed Medicare for 167 services in 2024

CMS data shows 167 Medicare services from Dr. Ramamoorthy across 5 procedure codes in 2024, for 127 Medicare patients. Medicare paid $16,682 for them. Every service was in an office.

Medicare services, 2024167
Medicare patients127
Paid by Medicare$16,682
Procedure codes5

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

  • 2023
  • 2024
Office and hospital visits
2023: 1332024: 1312%
Surgery
2023: 252024: 3644%

Dr. Ramamoorthy compared with the California median for general surgeons, 2024

  • Dr. Ramamoorthy
  • California median
Medicare services
167vs 166Close to median
Medicare patients
127vs 121Close to median
Part D claims
47vs 3438% above

Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.

Dr. Ramamoorthy'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. Ramamoorthy

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

Dr. Sonia Ramamoorthy treated 127 Medicare patients in 2024, average age 72

CMS counts 127 Medicare patients who saw Dr. Ramamoorthy in 2024. The largest group is 65 to 74, with 65 patients. 75% of them have high cholesterol, and 61% have high blood pressure. 22% are also on Medicaid. Their average risk score is 1.62, 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. Ramamoorthy's median patient age at 52, with 55% women.

Medicare patients, 2024127
Average age72
Average risk score1.62
Also on Medicaid22%

Dr. Ramamoorthy's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Ramamoorthy's Medicare patients by sex, 2024

  • Women7257%
  • Men5543%

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

  1. High cholesterol75%
  2. High blood pressure61%
  3. Cancer43%
  4. Arthritis40%
  5. Ischemic heart disease29%
  6. Diabetes27%
  7. Mood disorders27%
  8. Anxiety25%

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

Dr. Ramamoorthy's patients across all payers

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

Patient panel by age, all payers

Median age 52

Patient panel by sex, all payers

  • Women55%
  • Men44%

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

Dr. Sonia Ramamoorthy wrote 52 Medicare Part D claims in 2024

In 2024, Dr. Ramamoorthy wrote 52 Medicare Part D claims for 30 patients. 88% of them were for generic drugs. CMS names the drug for 47 of them, across 1 drug with 11 or more claims each, at $8,069 in total drug cost. In 2019, CMS named 26 claims across 2 drugs.

Part D claims, 202452
Drugs named by CMS1
Total drug cost$8,069
Part D patients30

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

  • Generic46 claims88%
  • Brand-name and other6 claims12%

Dr. Ramamoorthy's most prescribed drugs by claims, 2020

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. Ramamoorthy's Part D claims, 2024

  • Antibiotics38%20 of 52 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, 2019 to 2020

  • 2019
  • 2020
Claims for drugs CMS names
2019: 262020: 4781%

Drugs named by CMS: 1 in 2020, 2 in 2019.

See all prescribing by Dr. Ramamoorthy

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. Sonia Ramamoorthy 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. Ramamoorthy for performance year 2024, reported as part of a group. Dr. Ramamoorthy accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ramamoorthy as offering telehealth. CMS counts 22 procedures of colonoscopy by Dr. Ramamoorthy, more than 49% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Ramamoorthy'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. Ramamoorthy ranks in Medicare procedure volume

Colonoscopy
49th percentile22 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. Sonia Ramamoorthy has 121 publications on record

Dmand AI links 121 papers to Dr. Ramamoorthy, published from 2002 to 2024. 2019 was the busiest year, with 10. The most frequent topics are Postoperative Complications, Colectomy and Rectal Neoplasms. Dr. Ramamoorthy has published most often in Surg Endosc. Dr. Ramamoorthy's most frequent co-authors are Samuel G. Eisenstein, MD, Santiago Horgan and Lisa A. Parry, MD.

Papers121
Years published2002 to 2024

Dr. Ramamoorthy's papers by year, 2015 to 2024

Topics Dr. Ramamoorthy writes about most

  • Postoperative Complications
  • Colectomy
  • Rectal Neoplasms
  • Rectum
  • Laparoscopy
  • Length of Stay
  • Colorectal Neoplasms
  • Robotics

Dr. Ramamoorthy's most frequent co-authors

Recent publications by Dr. Ramamoorthy

See all 121 publications and co-authors

See who Dr. Ramamoorthy researches with

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

How network discovery works

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

Dr. Sonia Ramamoorthy has worked on 2 clinical trials

Dmand AI links Dr. Ramamoorthy to 2 clinical trials. 1 is still active or recruiting. Conditions studied include Ileus, Rectal Diseases and Colorectal Neoplasms.

Clinical trials with Dr. Ramamoorthy by phase

  1. NonePhase 1: no trials
  2. 1Phase 2: 1 trial
  3. 1Phase 3: 1 trial
  4. NonePhase 4: no trials

Conditions in Dr. Ramamoorthy's trials

  • Ileus
  • Rectal Diseases
  • Colorectal Neoplasms
  • Intestinal Obstruction

Investigators on the most trials with Dr. Ramamoorthy

Recent clinical trials with Dr. Ramamoorthy

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Sonia Ramamoorthy received $240,392 in industry payments from 2016 to 2025

CMS Open Payments shows 256 general payments to Dr. Ramamoorthy from 26 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 66% of the total. Medical Device Business Services, Inc. paid the most, $64,073.

General payments to Dr. Ramamoorthy by program year, 2016 to 2025

General payments to Dr. Ramamoorthy by kind, 2016 to 2025

$240.4Kin total
  • Consulting fees$158,28966%
  • Speaker and faculty fees$53,75022%
  • Travel and lodging$18,1038%
  • Food and beverage$10,0044%
  • Education$2460%

Companies that paid Dr. Ramamoorthy the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Ramamoorthy

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

Dr. Sonia Ramamoorthy has 7 awards and honors on record

Dmand AI lists 7 awards for Dr. Ramamoorthy, most recently America's Top Doctors in 2023.

Awards and honors for Dr. Ramamoorthy

  1. 2023
    • America's Top Doctors
    • Top Doctors:San Diego Area
  2. 2017
    • Top Doctors:Southern California
  3. 2013
    • CMS Stage 1 EHR
  4. Undated
    • FACS
    • FASCRS
See all 7 awards

Source: Dmand AI Professional Profile Data

Dr. Sonia Ramamoorthy graduated from Boston University School Of Medicine

Dr. Ramamoorthy graduated from Boston University School Of Medicine in 1996. Dr. Ramamoorthy is a member of ACS.

  1. Medical schoolBoston University School Of Medicine
  2. Board certified in colon & rectal surgeryAmerican Board of Colon and Rectal Surgery
  3. Board certified in surgeryAmerican Board of Surgery

Source: Dmand AI Professional Profile Data

Dr. Sonia Ramamoorthy accepts plans from 16 insurance carriers

Dr. Ramamoorthy is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 11. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • Excellus BlueCross BlueShield
  • United Healthcare
  • HCSC
  • Humana
  • Blue Cross Blue Shield of Massachusetts
  • +8 more carriersWith a free account

Plan types Dr. Ramamoorthy accepts, by number of carriers

  1. Medicare11
  2. PPO11
  3. HMO8
  4. EPO5
  5. POS5

Source: Dmand AI Insurance Network Data

Sources for Dr. Sonia Ramamoorthy'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
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
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. Sonia Ramamoorthy

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. Sonia Ramamoorthy's NPI number?

Dr. Sonia Ramamoorthy's NPI number is 1801812656. It was assigned on July 14, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Sonia Ramamoorthy?

Dr. Sonia Ramamoorthy is a general surgeon in San Diego, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Sonia Ramamoorthy practice?

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

What is Dr. Sonia Ramamoorthy's office phone number?

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

What is Dr. Sonia Ramamoorthy's medical license number?

Dr. Ramamoorthy holds California license A65709.

Which hospitals is Dr. Sonia Ramamoorthy affiliated with?

Dr. Ramamoorthy is affiliated with Hillcrest Medical Center.

What medical group is Dr. Sonia Ramamoorthy part of?

Dr. Ramamoorthy is linked to UC San Diego Health.

Does Dr. Sonia Ramamoorthy accept Medicare?

Yes. CMS data shows Dr. Ramamoorthy billed Medicare for 167 services in 2024, and Dr. Ramamoorthy accepts Medicare assignment.

Does Dr. Sonia Ramamoorthy offer telehealth?

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

What is Dr. Sonia Ramamoorthy's MIPS score?

Dr. Ramamoorthy'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. Sonia Ramamoorthy see?

CMS counts 127 Medicare patients who saw Dr. Ramamoorthy in 2024, with an average age of 72.

Is Dr. Sonia Ramamoorthy board certified?

Yes. Dr. Ramamoorthy is board certified in colon & rectal surgery by the American Board of Colon and Rectal Surgery.

What services does Dr. Sonia Ramamoorthy bill to Medicare?

In 2024, Dr. Ramamoorthy's most billed Medicare services were office visit, established patient (99213), surgery: digestive system (46600) and office visit, established patient (99214).

Where did Dr. Sonia Ramamoorthy go to medical school?

Dr. Ramamoorthy graduated from Boston University School Of Medicine in 1996.

What drugs does Dr. Sonia Ramamoorthy prescribe most?

In 2020 Medicare Part D data, Dr. Ramamoorthy's most prescribed drugs by claims were Travasol.

Has Dr. Sonia Ramamoorthy received payments from drug or device companies?

CMS Open Payments shows $240,392 in general payments to Dr. Ramamoorthy from 26 companies from 2016 to 2025. The largest total came from Medical Device Business Services, Inc.

How long has Dr. Sonia Ramamoorthy been practicing?

Dr. Ramamoorthy graduated from medical school in 1996, 30 years ago.

Does Dr. Sonia Ramamoorthy do research?

Dmand AI links 121 publications to Dr. Ramamoorthy, published from 2002 to 2024. Dr. Ramamoorthy has worked on 2 clinical trials.

Who does Dr. Sonia Ramamoorthy publish with?

Dr. Ramamoorthy's most frequent co-authors are Samuel G. Eisenstein, MD (31 shared papers), Santiago Horgan (28 shared papers) and Lisa A. Parry, MD (24 shared papers).

What insurance does Dr. Sonia Ramamoorthy accept?

Dr. Ramamoorthy is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 11. Check the plan with the practice before a visit.

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