Dr. Gretchen Eileen Winter, DO, PhD
- Medicare services, 2024
- 1,143
- Medicare patients, 2024
- 503
- Part D claims, 2024
- 209
- MIPS score, 2024
- 82
- Hospital affiliations
- 3
- Practice address
- 1100 Las Tablas Rd, Templeton, CA 93465
- Practice phone
- Call (805) 434-3500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Winter's professional email, personal email and mobile number
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Dr. Gretchen Eileen Winter is an internist in Templeton, California
Dr. Winter practices at Adventist Health Twin Cities in Templeton, California, part of Adventist Health.
Dr. Winter's NPI, 1558640953, was assigned on August 16, 2011. Dr. Winter graduated from WesternU College of Osteopathic Medicine of the Pacific in 2010. Dr. Winter holds California license 20A12705.
- NPI
- 1558640953NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395984017
- NPI enumeration date
- August 16, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 434-3500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gretchen Eileen Winter practices at Adventist Health Twin Cities in Templeton, California
Dr. Winter's primary practice is Adventist Health Twin Cities, at 1100 Las Tablas Rd, Templeton, CA 93465 in San Luis Obispo County. The practice phone is (805) 434-3500.
- Adventist Health Twin Cities1100 Las Tablas Rd, Templeton, CA 93465 · San Luis Obispo CountyPhone(805) 434-3500
Source: Dmand AI Affiliation Data
Dr. Gretchen Eileen Winter is affiliated with 3 sites of care and 3 medical groups
Dr. Winter's primary practice is Adventist Health Twin Cities in Templeton, California, part of Adventist Health. Dr. Winter is also affiliated with Dignity Health - French Hospital Medical Center. The medical group on file is Vituity. Dmand AI also links Dr. Winter to 1 more hospital and 2 medical groups, 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. Gretchen Eileen Winter's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Winter practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Adventist Health Twin Cities | Available with a free account |
| +2 more sites and 2 medical groups | 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 Adventist Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gretchen Eileen Winter is one of 16,751 internists in California
Internal medicine is Dr. Winter's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Winter is board certified in internal medicine by the American Osteopathic Board of Internal Medicine. Dmand AI has Dr. Winter's licenses on file in 3 states: California, West Virginia and Ohio.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- West Virginia license
- Ohio license
Clinical focus
Dmand AI lists acute respiratory failure, bile duct problems, cardiac arrhythmia, cellulitis, circulatory problems in extremities, congestive heart failure, electrolyte disorders and gastrointestinal bleeding among the conditions Dr. Winter treats.
Internists near Dr. Winter
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. Gretchen Eileen Winter billed Medicare for 1,143 services in 2024
CMS data shows 1,143 Medicare services from Dr. Winter across 5 procedure codes in 2024, for 503 Medicare patients. Medicare paid $92,091 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Winter's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,3562024: 1,14316%
Dr. Winter compared with the California median for internists, 2024
- Dr. Winter
- California median
- Medicare services
- 1,143vs 3613.2 times
- Medicare patients
- 503vs 1513.3 times
- Part D claims
- 49vs 42188% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Winter'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Winter and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gretchen Eileen Winter treated 503 Medicare patients in 2024, average age 78
CMS counts 503 Medicare patients who saw Dr. Winter in 2024. The largest group is 75 to 84, with 192 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 34% are also on Medicaid. Their average risk score is 1.96, 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. Winter's median patient age at 74, with 50% women.
Dr. Winter's Medicare patients by age, 2024
Dr. Winter's Medicare patients by sex, 2024
- Women25651%
- Men24749%
Chronic conditions among Dr. Winter's Medicare patients, 2024
- High blood pressure75%
- High cholesterol72%
- Arthritis53%
- Mood disorders42%
- Atrial fibrillation39%
- Depression39%
- Anxiety38%
- Chronic kidney disease38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Winter's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gretchen Eileen Winter wrote 209 Medicare Part D claims in 2024
In 2024, Dr. Winter wrote 209 Medicare Part D claims for 112 patients. 87% of them were for generic drugs. CMS names the drug for 49 of them, across 4 drugs with 11 or more claims each, at $6,166 in total drug cost. In 2023, CMS named 66 claims across 4 drugs.
Dr. Winter's Part D claims by kind of drug, 2024
- Generic182 claims87%
- Brand-name27 claims13%
Dr. Winter'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. Winter's Part D claims, 2024
- Opioids6%12 of 209 claims
- Antibiotics20%41 of 209 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: 662024: 4926%
Drugs named by CMS: 4 in 2024, 4 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. Gretchen Eileen Winter scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Winter for performance year 2024, reported as part of a group. Dr. Winter accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Winter's MIPS scores, performance year 2024
- 82of 100Final score
- 65.6of 100Quality
- 40of 100Improvement Activities
- 71of 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. Gretchen Eileen Winter received $852 in industry payments in 2016
CMS Open Payments shows 44 general payments to Dr. Winter from 14 drug and device companies in 2016. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $255.
Companies that paid Dr. Winter the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gretchen Eileen Winter graduated from WesternU College of Osteopathic Medicine of the Pacific
Dr. Winter graduated from WesternU College of Osteopathic Medicine of the Pacific in 2010. Dr. Winter is a member of AOA and SHM.
- Medical school
- Board certified in internal medicine
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Gretchen Eileen Winter accepts plans from 8 insurance carriers
Dr. Winter is in network with 8 carriers, including Elevance, Highmark and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Elevance
- Highmark
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- KY State Medicaid
Plan types Dr. Winter accepts, by number of carriers
- Medicare6
- PPO6
- POS3
- EPO2
- HMO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Gretchen Eileen Winter'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. Gretchen Eileen Winter
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. Gretchen Eileen Winter's NPI number?
Dr. Gretchen Eileen Winter's NPI number is 1558640953. It was assigned on August 16, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Gretchen Eileen Winter?
Dr. Gretchen Eileen Winter is an internist in Templeton, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Gretchen Eileen Winter practice?
Dr. Winter practices at 1100 Las Tablas Rd, Templeton, CA 93465. Dr. Winter's primary practice is Adventist Health Twin Cities in Templeton, California, part of Adventist Health. Dmand AI also links Dr. Winter to 1 hospital and 2 medical groups.
What is Dr. Gretchen Eileen Winter's office phone number?
The practice phone on file for Dr. Winter is (805) 434-3500.
What is Dr. Gretchen Eileen Winter's medical license number?
Dr. Winter holds California license 20A12705, one of the licenses on file in 3 states.
Which states has Dr. Gretchen Eileen Winter been licensed in?
Dmand AI has state licenses on file for Dr. Winter in California (2013 to 2026), West Virginia (2012 to 2014) and Ohio (2010 to 2011).
Which hospitals is Dr. Gretchen Eileen Winter affiliated with?
Dr. Winter practices at Adventist Health Twin Cities in Templeton, California. Dr. Winter is also affiliated with Dignity Health - French Hospital Medical Center. Dmand AI links Dr. Winter to 1 more hospital.
What medical group is Dr. Gretchen Eileen Winter part of?
Dr. Winter is linked to Vituity. Dmand AI links Dr. Winter to 2 more medical groups.
Does Dr. Gretchen Eileen Winter accept Medicare?
Yes. CMS data shows Dr. Winter billed Medicare for 1,143 services in 2024, and Dr. Winter accepts Medicare assignment.
What is Dr. Gretchen Eileen Winter's MIPS score?
Dr. Winter's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Gretchen Eileen Winter see?
CMS counts 503 Medicare patients who saw Dr. Winter in 2024, with an average age of 78.
Is Dr. Gretchen Eileen Winter board certified?
Yes. Dr. Winter is board certified in internal medicine by the American Osteopathic Board of Internal Medicine.
What services does Dr. Gretchen Eileen Winter bill to Medicare?
In 2024, Dr. Winter's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99239).
Where did Dr. Gretchen Eileen Winter go to medical school?
Dr. Winter graduated from WesternU College of Osteopathic Medicine of the Pacific in 2010.
What drugs does Dr. Gretchen Eileen Winter prescribe most?
In 2024 Medicare Part D data, Dr. Winter's most prescribed drugs by claims were Furosemide, Prednisone and Amoxicillin-Clavulanate Potass.
Has Dr. Gretchen Eileen Winter received payments from drug or device companies?
CMS Open Payments shows $852 in general payments to Dr. Winter from 14 companies from 2016 to 2016. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Gretchen Eileen Winter been practicing?
Dr. Winter graduated from medical school in 2010, 16 years ago.
What insurance does Dr. Gretchen Eileen Winter accept?
Dr. Winter is in network with 8 carriers, including Elevance, Highmark and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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