Proc Natl Acad Sci U S A
CitratesHematopoietic Stem Cell TransplantationMesenchymal Stem Cell Transplantation
Dr. David Michael Kollhoff, MD
NPI1316100563PAC ID7416109889
- Medicare patients, 2024
- 20
- Part D claims, 2024
- 459
- Publications
- 3
- Hospital affiliations
- 2
- Industry payments
- $57
- Practice address
- 975 Sereno Dr, Vallejo, CA 94589
- Practice phone
- Call (707) 651-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Kollhoff'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. David Michael Kollhoff is a urologist in Vallejo, California
Dr. Kollhoff practices at Vallejo Medical Center in Vallejo, California, part of Kaiser Permanente.
Dr. Kollhoff's NPI, 1316100563, was assigned on July 8, 2008. Dr. Kollhoff graduated from University of Kansas School of Medicine - Kansas City in 2006. Dr. Kollhoff holds California license A122892.
NPI and contact details
- NPI
- 1316100563NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416109889
- NPI enumeration date
- July 8, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (707) 651-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Michael Kollhoff practices at Vallejo Medical Center in Vallejo, California
Dr. Kollhoff's primary practice is Vallejo Medical Center, at 975 Sereno Dr, Vallejo, CA 94589 in Solano County. The practice phone is (707) 651-1000.
- Vallejo Medical Center975 Sereno Dr, Vallejo, CA 94589 · Solano CountyPhone(707) 651-1000
Source: Dmand AI Affiliation Data
Dr. David Michael Kollhoff is affiliated with 4 sites of care and 1 medical group
Dr. Kollhoff's primary practice is Vallejo Medical Center in Vallejo, California, part of Kaiser Permanente. Dr. Kollhoff is also affiliated with Vacaville Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Kollhoff to 1 more home health agency and 1 hospice, each named with a free account.
Vacaville Medical CenterThe Permanente Medical Group, Inc.1 home health agencyName with a free account1 hospiceName with a free account
See all 5 affiliations for Dr. KollhoffSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David Michael Kollhoff's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kollhoff practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Vallejo Medical Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Michael Kollhoff is one of 1,395 urologists in California
Urology is Dr. Kollhoff's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Kollhoff is board certified in urology by the American Board of Urology. Dmand AI has Dr. Kollhoff's licenses on file in 2 states: California and Illinois.
Specialties and state licenses
- Urology, CaliforniaPrimary
- Illinois license
Clinical focus
Dmand AI lists kidney stone disease among the conditions Dr. Kollhoff treats.
Urologists near Dr. Kollhoff
Counts of urologists 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. David Michael Kollhoff treated 20 Medicare patients in 2024, average age 64
CMS counts 20 Medicare patients who saw Dr. Kollhoff in 2024. 70% of them have high blood pressure, and 60% have high cholesterol. Their average risk score is 1.32, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Kollhoff's median patient age at 67, with 24% women.
Medicare patients, 202420
Average age64
Average risk score1.32
Chronic conditions among Dr. Kollhoff's Medicare patients, 2024
- High blood pressure70%
- High cholesterol60%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kollhoff's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women24%
- Men76%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Michael Kollhoff wrote 459 Medicare Part D claims in 2024
In 2024, Dr. Kollhoff wrote 459 Medicare Part D claims for 205 patients. 97% of them were for generic drugs. CMS names the drug for 388 of them, across 7 drugs with 11 or more claims each, at $4,809 in total drug cost. In 2023, CMS named 434 claims across 9 drugs.
Part D claims, 2024459
Drugs named by CMS7
Total drug cost$4,809
Part D patients205
Dr. Kollhoff's Part D claims by kind of drug, 2024
- Generic443 claims97%
- Brand-name and other16 claims3%
Dr. Kollhoff'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. Kollhoff's Part D claims, 2024
- Opioids18%81 of 459 claims
- Antibiotics24%110 of 459 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: 4342024: 38811%
Drugs named by CMS: 7 in 2024, 9 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. David Michael Kollhoff offers telehealth to Medicare patients
Dr. Kollhoff accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Kollhoff as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David Michael Kollhoff has 3 publications on record
Dmand AI links 3 papers to Dr. Kollhoff, published from 2011 to 2013. The most frequent topics are Polymers, Tissue Scaffolds and Biocompatible Materials. Dr. Kollhoff's most frequent co-authors are Earl Cheng, MD, Andrew John Marks, MD and Natalie Tapaskar, MD.
Papers3
Years published2011 to 2013
Topics Dr. Kollhoff writes about most
- Polymers
- Tissue Scaffolds
- Biocompatible Materials
- Citrates
- Neovascularization, Physiologic
- Rats, Nude
- Regeneration
- Tissue Engineering
Dr. Kollhoff's most frequent co-authors
Recent publications by Dr. Kollhoff
J Biomed Mater Res A
Biocompatible MaterialsCitratesElasticity
Biocompatible MaterialsExtracellular MatrixPolymers
See who Dr. Kollhoff researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kollhoff works with, so you can find a warm path to the right urologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. David Michael Kollhoff received $57 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Kollhoff from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $57.
Companies that paid Dr. Kollhoff the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Michael Kollhoff graduated from University of Kansas School of Medicine - Kansas City
Dr. Kollhoff graduated from University of Kansas School of Medicine - Kansas City in 2006.
- Medical school
- Board certified in urology
Source: Dmand AI Professional Profile Data
Dr. David Michael Kollhoff accepts plans from 2 insurance carriers
Dr. Kollhoff is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Kollhoff accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. David Michael Kollhoff'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. David Michael Kollhoff
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. David Michael Kollhoff's NPI number?
Dr. David Michael Kollhoff's NPI number is 1316100563. It was assigned on July 8, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. David Michael Kollhoff?
Dr. David Michael Kollhoff is a urologist in Vallejo, California. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. David Michael Kollhoff practice?
Dr. Kollhoff practices at 975 Sereno Dr, Vallejo, CA 94589. Dr. Kollhoff's primary practice is Vallejo Medical Center in Vallejo, California, part of Kaiser Permanente. Dmand AI also links Dr. Kollhoff to 1 home health agency and 1 hospice.
What is Dr. David Michael Kollhoff's office phone number?
The practice phone on file for Dr. Kollhoff is (707) 651-1000.
What is Dr. David Michael Kollhoff's medical license number?
Dr. Kollhoff holds California license A122892, one of the licenses on file in 2 states.
Which states has Dr. David Michael Kollhoff been licensed in?
Dmand AI has state licenses on file for Dr. Kollhoff in California (2012 to 2026) and Illinois (2009 to 2014).
Which hospitals is Dr. David Michael Kollhoff affiliated with?
Dr. Kollhoff practices at Vallejo Medical Center in Vallejo, California. Dr. Kollhoff is also affiliated with Vacaville Medical Center.
What medical group is Dr. David Michael Kollhoff part of?
Dr. Kollhoff is linked to The Permanente Medical Group, Inc.
Does Dr. David Michael Kollhoff accept Medicare?
Yes. CMS lists Dr. Kollhoff as accepting Medicare assignment.
Does Dr. David Michael Kollhoff offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Kollhoff as offering telehealth services.
Show 9 more questionsShow fewer questions
How many Medicare patients does Dr. David Michael Kollhoff see?
CMS counts 20 Medicare patients who saw Dr. Kollhoff in 2024, with an average age of 64.
Is Dr. David Michael Kollhoff board certified?
Yes. Dr. Kollhoff is board certified in urology by the American Board of Urology.
Where did Dr. David Michael Kollhoff go to medical school?
Dr. Kollhoff graduated from University of Kansas School of Medicine - Kansas City in 2006.
What drugs does Dr. David Michael Kollhoff prescribe most?
In 2024 Medicare Part D data, Dr. Kollhoff's most prescribed drugs by claims were Finasteride, Tramadol HCl and Trospium Chloride.
Has Dr. David Michael Kollhoff received payments from drug or device companies?
CMS Open Payments shows $57 in general payments to Dr. Kollhoff from 1 company from 2022 to 2022. The largest total came from Bayer HealthCare Pharmaceuticals Inc.
How long has Dr. David Michael Kollhoff been practicing?
Dr. Kollhoff graduated from medical school in 2006, 20 years ago.
Does Dr. David Michael Kollhoff do research?
Dmand AI links 3 publications to Dr. Kollhoff, published from 2011 to 2013.
Who does Dr. David Michael Kollhoff publish with?
Dr. Kollhoff's most frequent co-authors are Earl Cheng, MD (3 shared papers), Andrew John Marks, MD (1 shared paper) and Natalie Tapaskar, MD (1 shared paper).
What insurance does Dr. David Michael Kollhoff accept?
Dr. Kollhoff is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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