Dr. Karl Rafe Riecken, DO
- Part D claims, 2024
- 340
- Affiliated sites
- 1
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 900 E Hamilton Ave, Campbell, CA 95008
- Practice phone
- Call (469) 466-7007
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Signify Health, LLC
Campbell, California
Find Dr. Riecken's professional email, personal email and mobile number
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Dr. Karl Rafe Riecken is a general practice physician in Campbell, California
Dr. Riecken practices at Signify Health, LLC in Campbell, California.
Dr. Riecken's NPI, 1255911889, was assigned on April 8, 2021. Dr. Riecken holds Washington license DOL.OP.61499713.
- NPI
- 1255911889NPI Registry (opens in a new tab)
- NPI enumeration date
- April 8, 2021
- NPI status
- Active
- Practice phone
- (469) 466-7007
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Karl Rafe Riecken practices at Signify Health, LLC in Campbell, California
Dr. Riecken's primary practice is Signify Health, LLC, at 900 E Hamilton Ave, Campbell, CA 95008 in Santa Clara County. The practice phone is (469) 466-7007.
- Signify Health, LLC900 E Hamilton Ave, Campbell, CA 95008 · Santa Clara CountyPhone(469) 466-7007
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Karl Rafe Riecken is affiliated with 2 sites of care and 2 medical groups
Dr. Riecken's primary practice is Signify Health, LLC in Campbell, California. The medical group on file is Signify Health. Dmand AI also links Dr. Riecken to 1 more group practice or clinic 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. Karl Rafe Riecken's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Riecken practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Signify Health, LLC | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Karl Rafe Riecken is one of 1,526 general practice physicians in California
General practice is Dr. Riecken's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Riecken is licensed in Washington.
Specialties and state licenses
- General practice, WashingtonPrimary
General practice physicians near Dr. Riecken
Counts of general practice physicians 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. Karl Rafe Riecken's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Dr. Riecken's median patient age at 61, with 67% women.
Dr. Riecken's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. Karl Rafe Riecken wrote 340 Medicare Part D claims in 2024
In 2024, Dr. Riecken wrote 340 Medicare Part D claims for 48 patients. 92% of them were for generic drugs. CMS names the drug for 119 of them, across 7 drugs with 11 or more claims each, at $1,005 in total drug cost. In 2023, CMS named 182 claims across 10 drugs.
Dr. Riecken's Part D claims by kind of drug, 2024
- Generic313 claims92%
- Brand-name and other27 claims8%
Dr. Riecken'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1822024: 11935%
Drugs named by CMS: 7 in 2024, 10 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
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Sources for Dr. Karl Rafe Riecken'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)Medicare Part D Prescribers - by Provider (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. Karl Rafe Riecken
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What is Dr. Karl Rafe Riecken's NPI number?
Dr. Karl Rafe Riecken's NPI number is 1255911889. It was assigned on April 8, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Karl Rafe Riecken?
Dr. Karl Rafe Riecken is a general practice physician in Campbell, California. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Karl Rafe Riecken practice?
Dr. Riecken practices at 900 E Hamilton Ave, Campbell, CA 95008. Dr. Riecken's primary practice is Signify Health, LLC in Campbell, California. Dmand AI also links Dr. Riecken to 1 group practice or clinic and 1 medical group.
What is Dr. Karl Rafe Riecken's office phone number?
The practice phone on file for Dr. Riecken is (469) 466-7007.
What is Dr. Karl Rafe Riecken's medical license number?
Dr. Riecken holds Washington license DOL.OP.61499713.
What medical group is Dr. Karl Rafe Riecken part of?
Dr. Riecken is linked to Signify Health. Dmand AI links Dr. Riecken to 1 more medical group.
What drugs does Dr. Karl Rafe Riecken prescribe most?
In 2024 Medicare Part D data, Dr. Riecken's most prescribed drugs by claims were Atorvastatin Calcium, Pantoprazole Sodium and Metformin HCl.
How long has Dr. Karl Rafe Riecken been practicing?
Dr. Riecken graduated from medical school in 2021, 5 years ago.
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