Dr. Nolan Michael Giehl, MD
- Medicare services, 2024
- 22
- Medicare patients, 2024
- 21
- Part D claims, 2024
- 1,933
- Publications
- 2
- Hospital affiliations
- 1
- Practice address
- 5601 De Soto Avenue, Woodland Hills, CA 91367
- Practice phone
- Call (818) 719-3800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Giehl's professional email, personal email and mobile number
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Dr. Nolan Michael Giehl is a nephrologist in Woodland Hills, California
Dr. Giehl practices at Kaiser Permanente Woodland Hills Medical Center in Woodland Hills, California, part of Kaiser Permanente.
Dr. Giehl's NPI, 1538600895, was assigned on March 19, 2017. Dr. Giehl graduated from UC Davis School of Medicine in 2017. Dr. Giehl holds California license A157538.
- NPI
- 1538600895NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436493764
- NPI enumeration date
- March 19, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (818) 719-3800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nolan Michael Giehl practices at Kaiser Permanente Woodland Hills Medical Center in Woodland Hills, California
Dr. Giehl's primary practice is Kaiser Permanente Woodland Hills Medical Center, at 5601 De Soto Avenue, Woodland Hills, CA 91367 in Los Angeles County. The practice phone is (818) 719-3800.
- Kaiser Permanente Woodland Hills Medical Center5601 De Soto Avenue, Woodland Hills, CA 91367 · Los Angeles CountyPhone(818) 719-3800
Source: Dmand AI Affiliation Data
Dr. Nolan Michael Giehl is affiliated with 2 sites of care and 1 medical group
Dr. Giehl's primary practice is Kaiser Permanente Woodland Hills Medical Center in Woodland Hills, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Giehl to 1 more dialysis center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Nolan Michael Giehl's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Giehl practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente Woodland Hills Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nolan Michael Giehl is one of 1,401 nephrologists in California
Nephrology is Dr. Giehl's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Giehl is board certified in internal medicine by the American Board of Internal Medicine. Dr. Giehl is licensed in California.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
Clinical focus
Dmand AI lists acute kidney failure, chronic kidney disease and fluid and electrolyte imbalances among the conditions Dr. Giehl treats.
Nephrologists near Dr. Giehl
Counts of nephrologists 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. Nolan Michael Giehl billed Medicare for 22 services in 2024
CMS data shows 22 Medicare services from Dr. Giehl across 1 procedure code in 2024, for 21 Medicare patients. Medicare paid $1,425 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Giehl compared with the California median for nephrologists, 2024
- Dr. Giehl
- California median
- Medicare services
- 22vs 1,08498% below
- Medicare patients
- 21vs 30793% below
- Part D claims
- 1,701vs 95578% above
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Giehl'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.
Need commercial claims for Dr. Giehl?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Giehl and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nolan Michael Giehl treated 21 Medicare patients in 2024, average age 66
CMS counts 21 Medicare patients who saw Dr. Giehl in 2024. 75% of them have chronic kidney disease, and 75% have diabetes. Their average risk score is 8.76, 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. Giehl's median patient age at 66, with 48% women.
Chronic conditions among Dr. Giehl's Medicare patients, 2024
- Chronic kidney disease75%
- Diabetes75%
- High blood pressure75%
- Heart failure67%
- High cholesterol67%
Share of Medicare patients with each condition. A patient can have several.
Dr. Giehl's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nolan Michael Giehl wrote 1,933 Medicare Part D claims in 2024
In 2024, Dr. Giehl wrote 1,933 Medicare Part D claims for 416 patients. 85% of them were for generic drugs. CMS names the drug for 1,701 of them, across 28 drugs with 11 or more claims each, at $164,127 in total drug cost. In 2023, CMS named 1,099 claims across 23 drugs.
Dr. Giehl's Part D claims by kind of drug, 2024
- Generic1,634 claims85%
- Brand-name and other299 claims15%
Dr. Giehl'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. Giehl's Part D claims, 2024
- Antibiotics2%30 of 1,933 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: 1,0992024: 1,70155%
Drugs named by CMS: 28 in 2024, 23 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. Nolan Michael Giehl offers telehealth to Medicare patients
Dr. Giehl accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Giehl as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Nolan Michael Giehl has 2 publications on record
Dmand AI links 2 papers to Dr. Giehl, published from 2013 to 2020. Dr. Giehl's most frequent co-authors are Kuang-Yu Jen, MD, PhD and Brian Yim Young, MD.
Dr. Giehl's most frequent co-authors
Recent publications by Dr. Giehl
See who Dr. Giehl researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Giehl works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Nolan Michael Giehl received $231 in industry payments from 2020 to 2025
CMS Open Payments shows 5 general payments to Dr. Giehl from 4 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $153.
General payments to Dr. Giehl by program year, 2020 to 2025
Companies that paid Dr. Giehl the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nolan Michael Giehl graduated from UC Davis School of Medicine
Dr. Giehl graduated from UC Davis School of Medicine in 2017.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Nolan Michael Giehl accepts plans from 2 insurance carriers
Dr. Giehl 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. Giehl accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Nolan Michael Giehl'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) |
| 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. Nolan Michael Giehl
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. Nolan Michael Giehl's NPI number?
Dr. Nolan Michael Giehl's NPI number is 1538600895. It was assigned on March 19, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Nolan Michael Giehl?
Dr. Nolan Michael Giehl is a nephrologist in Woodland Hills, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Nolan Michael Giehl practice?
Dr. Giehl practices at 5601 De Soto Avenue, Woodland Hills, CA 91367. Dr. Giehl's primary practice is Kaiser Permanente Woodland Hills Medical Center in Woodland Hills, California, part of Kaiser Permanente. Dmand AI also links Dr. Giehl to 1 dialysis center.
What is Dr. Nolan Michael Giehl's office phone number?
The practice phone on file for Dr. Giehl is (818) 719-3800.
What is Dr. Nolan Michael Giehl's medical license number?
Dr. Giehl holds California license A157538.
Which hospitals is Dr. Nolan Michael Giehl affiliated with?
Dr. Giehl practices at Kaiser Permanente Woodland Hills Medical Center in Woodland Hills, California.
What medical group is Dr. Nolan Michael Giehl part of?
Dr. Giehl is linked to Southern California Permanente Medical Group.
Does Dr. Nolan Michael Giehl accept Medicare?
Yes. CMS data shows Dr. Giehl billed Medicare for 22 services in 2024, and Dr. Giehl accepts Medicare assignment.
Does Dr. Nolan Michael Giehl offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Giehl as offering telehealth services.
How many Medicare patients does Dr. Nolan Michael Giehl see?
CMS counts 21 Medicare patients who saw Dr. Giehl in 2024, with an average age of 66.
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Is Dr. Nolan Michael Giehl board certified?
Yes. Dr. Giehl is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Nolan Michael Giehl bill to Medicare?
In 2024, Dr. Giehl's most billed Medicare services were hospital inpatient care (99232).
Where did Dr. Nolan Michael Giehl go to medical school?
Dr. Giehl graduated from UC Davis School of Medicine in 2017.
What drugs does Dr. Nolan Michael Giehl prescribe most?
In 2024 Medicare Part D data, Dr. Giehl's most prescribed drugs by claims were Jardiance, Losartan Potassium and Amlodipine Besylate.
Has Dr. Nolan Michael Giehl received payments from drug or device companies?
CMS Open Payments shows $231 in general payments to Dr. Giehl from 4 companies from 2020 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Nolan Michael Giehl been practicing?
Dr. Giehl graduated from medical school in 2017, 9 years ago.
Does Dr. Nolan Michael Giehl do research?
Dmand AI links 2 publications to Dr. Giehl, published from 2013 to 2020.
Who does Dr. Nolan Michael Giehl publish with?
Dr. Giehl's most frequent co-authors are Kuang-Yu Jen, MD, PhD (1 shared paper) and Brian Yim Young, MD (1 shared paper).
What insurance does Dr. Nolan Michael Giehl accept?
Dr. Giehl 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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