Katherine Hardt Winter, MD
Family Medicine Physician · Pleasant Hill, CA
Katherine Hardt Winter, MD is a family medicine physician with a practice address in Pleasant Hill, California, and NPI 1356631121, issued on Apr 14, 2011. Check the license (California FW4676649, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Katherine Hardt Winter
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- FW4676649 CA
Self-reported in NPPES; status is on the state search - Practice location
- 401 Gregory LN Ste 104, Pleasant Hill, CA 94523
- Phone
- (925) 682-2401
- Enumerated
- Apr 14, 2011
- Record last updated
- Sep 26, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20141124000848); accepts Medicare assignment
- Medical or professional school
- University Of Florida College Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 401 Gregory LN Ste 104
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katherine Hardt Winter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license FW4676649Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average family medicine physician in 2024
3,448 Medicare Part D claims for 405 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 64 claims were for opioids.
Most prescribed
- Atorvastatin Calcium330 claims
- Levothyroxine Sodium238 claims
- Lisinopril193 claims
- Amlodipine Besylate148 claims
- Losartan Potassium121 claims
- Gabapentin93 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $74.72
4 payments; by number, the most common kind was food and beverage; the largest payer was Dexcom, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- John Muir Physician NetworkWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
14 family medicine physician records list a practice address in Pleasant Hill
They are 14 of the 843 NPPES records with a practice address in Pleasant Hill, and 17,133 family medicine physician records in California.
All 14 in Pleasant Hill → All 17,133 in California → Every provider in Pleasant Hill →
Other family medicine physician records in California
- Omer Aba-Omer, MDSanta Monica, CA1649702093
- Michelle Ababa, MDWilmington, CA1710922513
- Anna Tzeitel Abalos, MDRoseville, CA1720200017
- Adan Abarca, MDAnaheim, CA1760553689
- Vanessa Abarca, DOVentura, CA1952040859
- Lorraine Abate, M.D.Sacramento, CA1104840008
- Robert Abatecola, MDCastro Valley, CA1669551719
- Romeo Abaya, M.D.Cottonwood, CA1598053506
- Effiem Abbah, MD, MPHSan Francisco, CA1821185133
- Khuzeman Abbasi, MDSanta Rosa, CA1841979952
Common questions
What is Katherine Hardt Winter, MD's NPI number?
Katherine Hardt Winter, MD's National Provider Identifier (NPI) is 1356631121, issued on Apr 14, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Hardt Winter, MD located?
The NPPES record lists a practice address at 401 Gregory LN Ste 104, Pleasant Hill, CA, 94523. Phone: (925) 682-2401. Providers update this record themselves, so call before visiting.
How can I verify Katherine Hardt Winter, MD's license?
NPPES lists California license number FW4676649, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine Hardt Winter, MD prescribe under Medicare Part D?
In 2024, Katherine Hardt Winter, MD had 3,448 Medicare Part D claims for 405 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.