Dr. Sarah Elizabeth Stone Coskun, MD
- Medicare services, 2024
- 459
- Medicare patients, 2024
- 177
- Part D claims, 2024
- 154
- MIPS score, 2024
- 89
- Hospital affiliations
- 2
- Practice address
- 751 Medical Center Court, Chula Vista, CA 91911
- Practice phone
- Call (619) 502-5800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Coskun's professional email, personal email and mobile number
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Dr. Sarah Elizabeth Stone Coskun is an internist in Chula Vista, California
Dr. Coskun practices at Sharp Chula Vista Medical Center in Chula Vista, California, part of Sharp HealthCare.
Dr. Coskun's NPI, 1104878545, was assigned on May 16, 2006. Dr. Coskun graduated from The Warren Alpert Medical School of Brown University in 2001. Dr. Coskun holds California license A81233.
- NPI
- 1104878545NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466413109
- NPI enumeration date
- May 16, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 502-5800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sarah Elizabeth Stone Coskun practices at Sharp Chula Vista Medical Center in Chula Vista, California
Dr. Coskun's primary practice is Sharp Chula Vista Medical Center, at 751 Medical Center Court, Chula Vista, CA 91911 in San Diego County. The practice phone is (619) 502-5800.
- Sharp Chula Vista Medical Center751 Medical Center Court, Chula Vista, CA 91911 · San Diego CountyPhone(619) 502-5800
Source: Dmand AI Affiliation Data
Dr. Sarah Elizabeth Stone Coskun is affiliated with 4 sites of care and 2 medical groups
Dr. Coskun's primary practice is Sharp Chula Vista Medical Center in Chula Vista, California, part of Sharp HealthCare. Dr. Coskun is also affiliated with Sharp Memorial Hospital. The medical group on file is Emergency and Acute Care Medical Corporation. Dmand AI also links Dr. Coskun to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Sarah Elizabeth Stone Coskun's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Coskun practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sharp Chula Vista Medical Center | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Sharp HealthCare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Sarah Elizabeth Stone Coskun is one of 16,751 internists in California
Internal medicine is Dr. Coskun's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Coskun is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Coskun's licenses on file in 2 states: California and Connecticut.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Connecticut license
Clinical focus
Dmand AI lists acute diabetes, congestive heart failure, gastrointestinal inflammation, gastrointestinal obstruction, heart attack, kidney failure, mini-stroke (TIA) and non-surgical back problems among the conditions Dr. Coskun treats.
Internists near Dr. Coskun
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. Sarah Elizabeth Stone Coskun billed Medicare for 459 services in 2024
CMS data shows 459 Medicare services from Dr. Coskun across 5 procedure codes in 2024, for 177 Medicare patients. Medicare paid $35,255 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Coskun's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4132024: 45911%
Dr. Coskun compared with the California median for internists, 2024
- Dr. Coskun
- California median
- Medicare services
- 459vs 36127% above
- Medicare patients
- 177vs 15117% above
- Part D claims
- 13vs 42197% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Coskun'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sarah Elizabeth Stone Coskun treated 177 Medicare patients in 2024, average age 77
CMS counts 177 Medicare patients who saw Dr. Coskun in 2024. The largest group is 75 to 84, with 60 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 42% are also on Medicaid. Their average risk score is 3.01, 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. Coskun's median patient age at 76, with 54% women.
Dr. Coskun's Medicare patients by age, 2024
Dr. Coskun's Medicare patients by sex, 2024
- Women10358%
- Men7442%
Chronic conditions among Dr. Coskun's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Ischemic heart disease54%
- Diabetes53%
- Chronic kidney disease49%
- Heart failure49%
- Mood disorders40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Coskun's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sarah Elizabeth Stone Coskun wrote 154 Medicare Part D claims in 2024
In 2024, Dr. Coskun wrote 154 Medicare Part D claims for 86 patients. 92% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $144 in total drug cost. In 2023, CMS named 12 claims across 1 drug.
Dr. Coskun's Part D claims by kind of drug, 2024
- Generic142 claims92%
- Brand-name12 claims8%
Dr. Coskun'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. Coskun's Part D claims, 2024
- Opioids7%11 of 154 claims
- Antibiotics24%37 of 154 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: 122024: 138%
Drugs named by CMS: 1 in 2024, 1 in 2023.
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. Sarah Elizabeth Stone Coskun scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Coskun for performance year 2024, reported as part of a group. Dr. Coskun accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Coskun's MIPS scores, performance year 2024
- 89of 100Final score
- 81of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
- 82of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Sarah Elizabeth Stone Coskun received $125 in industry payments in 2023
CMS Open Payments shows 1 general payment to Dr. Coskun from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $125.
Companies that paid Dr. Coskun the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Sarah Elizabeth Stone Coskun graduated from The Warren Alpert Medical School of Brown University
Dr. Coskun graduated from The Warren Alpert Medical School of Brown University in 2001.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Sarah Elizabeth Stone Coskun accepts plans from 8 insurance carriers
Dr. Coskun is in network with 8 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Massachusetts
- HCSC
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
Plan types Dr. Coskun accepts, by number of carriers
- Medicare5
- PPO5
- POS4
- EPO3
- HMO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Sarah Elizabeth Stone Coskun's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Sarah Elizabeth Stone Coskun
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. Sarah Elizabeth Stone Coskun's NPI number?
Dr. Sarah Elizabeth Stone Coskun's NPI number is 1104878545. It was assigned on May 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Sarah Elizabeth Stone Coskun?
Dr. Sarah Elizabeth Stone Coskun is an internist in Chula Vista, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Sarah Elizabeth Stone Coskun practice?
Dr. Coskun practices at 751 Medical Center Court, Chula Vista, CA 91911. Dr. Coskun's primary practice is Sharp Chula Vista Medical Center in Chula Vista, California, part of Sharp HealthCare. Dmand AI also links Dr. Coskun to 2 group practices and clinics and 1 medical group.
What is Dr. Sarah Elizabeth Stone Coskun's office phone number?
The practice phone on file for Dr. Coskun is (619) 502-5800.
What is Dr. Sarah Elizabeth Stone Coskun's medical license number?
Dr. Coskun holds California license A81233, one of the licenses on file in 2 states.
Which states has Dr. Sarah Elizabeth Stone Coskun been licensed in?
Dmand AI has state licenses on file for Dr. Coskun in California (2002 to 2026) and Connecticut (2006 to 2007).
Which hospitals is Dr. Sarah Elizabeth Stone Coskun affiliated with?
Dr. Coskun practices at Sharp Chula Vista Medical Center in Chula Vista, California. Dr. Coskun is also affiliated with Sharp Memorial Hospital.
What medical group is Dr. Sarah Elizabeth Stone Coskun part of?
Dr. Coskun is linked to Emergency and Acute Care Medical Corporation. Dmand AI links Dr. Coskun to 1 more medical group.
Does Dr. Sarah Elizabeth Stone Coskun accept Medicare?
Yes. CMS data shows Dr. Coskun billed Medicare for 459 services in 2024, and Dr. Coskun accepts Medicare assignment.
What is Dr. Sarah Elizabeth Stone Coskun's MIPS score?
Dr. Coskun's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Sarah Elizabeth Stone Coskun see?
CMS counts 177 Medicare patients who saw Dr. Coskun in 2024, with an average age of 77.
Is Dr. Sarah Elizabeth Stone Coskun board certified?
Yes. Dr. Coskun is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Sarah Elizabeth Stone Coskun bill to Medicare?
In 2024, Dr. Coskun's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99239) and hospital inpatient care (99233).
Where did Dr. Sarah Elizabeth Stone Coskun go to medical school?
Dr. Coskun graduated from The Warren Alpert Medical School of Brown University in 2001.
What drugs does Dr. Sarah Elizabeth Stone Coskun prescribe most?
In 2024 Medicare Part D data, Dr. Coskun's most prescribed drugs by claims were Atorvastatin Calcium.
Has Dr. Sarah Elizabeth Stone Coskun received payments from drug or device companies?
CMS Open Payments shows $125 in general payments to Dr. Coskun from 1 company from 2023 to 2023. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Sarah Elizabeth Stone Coskun been practicing?
Dr. Coskun graduated from medical school in 2001, 25 years ago.
What insurance does Dr. Sarah Elizabeth Stone Coskun accept?
Dr. Coskun is in network with 8 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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