Dr. Karen Winston, MD
- Part D claims, 2018
- 14
- Industry payments
- $64
- Affiliated sites
- 2
- Medical groups
- 2
- State license
- 1
- Practice address
- 255 E Bonita Ave, Pomona, CA 91767
- Practice phone
- Call (909) 596-7733
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Casa Colina Hospital
Pomona, California
Find Dr. Winston's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Karen Winston is a pediatrician in Pomona, California
Dr. Winston practices at Casa Colina Hospital in Pomona, California.
Dr. Winston's NPI, 1659394138, was assigned on July 25, 2006. Dr. Winston holds California license A46505.
- NPI
- 1659394138NPI Registry (opens in a new tab)
- NPI enumeration date
- July 25, 2006
- NPI status
- Active
- Practice phone
- (909) 596-7733
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Karen Winston practices at Casa Colina Hospital in Pomona, California
Dr. Winston's primary practice is Casa Colina Hospital, at 255 E Bonita Ave, Pomona, CA 91767 in Los Angeles County. The practice phone is (909) 596-7733.
- Casa Colina Hospital255 E Bonita Ave, Pomona, CA 91767 · Los Angeles CountyPhone(909) 596-7733
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Karen Winston is affiliated with 3 sites of care and 2 medical groups
Dr. Winston's primary practice is Casa Colina Hospital in Pomona, California. The medical group on file is Beaver Medical Group. Dmand AI also links Dr. Winston to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Karen Winston's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Winston practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Casa Colina Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Karen Winston is one of 8,236 pediatricians in California
Pediatrics is Dr. Winston's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Winston is licensed in California.
Specialties and state licenses
- Pediatrics, CaliforniaPrimary
Pediatricians near Dr. Winston
Counts of pediatricians 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. Karen Winston's patients have a median age of 15
Across all payers, Dmand AI patient panel data puts Dr. Winston's median patient age at 15, with 61% women.
Dr. Winston's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 15
Patient panel by sex, all payers
- Women61%
- Men39%
Source: Dmand AI Patient Panel Data
Dr. Karen Winston wrote 14 Medicare Part D claims in 2018
In 2018, Dr. Winston wrote 14 Medicare Part D claims. They cover 1 drug, with $3,400 in total drug cost. In 2017, CMS named 13 claims across 1 drug.
Dr. Winston's most prescribed drugs by claims, 2018
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, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 132018: 148%
Drugs named by CMS: 1 in 2018, 1 in 2017.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Karen Winston received $64 in industry payments from 2018 to 2023
CMS Open Payments shows 3 general payments to Dr. Winston from 3 drug and device companies from 2018 to 2023. Food and beverage make up the largest share, 100% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $22.
General payments to Dr. Winston by program year, 2018 to 2023
Companies that paid Dr. Winston the most, 2018 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Karen Winston'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Karen Winston
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. Karen Winston's NPI number?
Dr. Karen Winston's NPI number is 1659394138. It was assigned on July 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Karen Winston?
Dr. Karen Winston is a pediatrician in Pomona, California. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Karen Winston practice?
Dr. Winston practices at 255 E Bonita Ave, Pomona, CA 91767. Dr. Winston's primary practice is Casa Colina Hospital in Pomona, California. Dmand AI also links Dr. Winston to 2 group practices and clinics and 1 medical group.
What is Dr. Karen Winston's office phone number?
The practice phone on file for Dr. Winston is (909) 596-7733.
What is Dr. Karen Winston's medical license number?
Dr. Winston holds California license A46505.
What medical group is Dr. Karen Winston part of?
Dr. Winston is linked to Beaver Medical Group. Dmand AI links Dr. Winston to 1 more medical group.
What drugs does Dr. Karen Winston prescribe most?
In 2018 Medicare Part D data, Dr. Winston's most prescribed drugs by claims were Novolin R.
Has Dr. Karen Winston received payments from drug or device companies?
CMS Open Payments shows $64 in general payments to Dr. Winston from 3 companies from 2018 to 2023. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. Karen Winston been practicing?
Dr. Winston's NPI was assigned in 2006.
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