Mark Peder Christiansen, MD
Endocrinology, Diabetes & Metabolism Physician · Walnut Creek, CA
Mark Peder Christiansen, MD is an endocrinology, diabetes & metabolism physician with a practice address in Walnut Creek, California, and NPI 1821108218, issued on Aug 30, 2006. Check the license (California G62892, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Peder Christiansen
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- G62892 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2405 Shadelands Dr Ste 300, Walnut Creek, CA 94598
- Phone
- (925) 939-8585
- Enumerated
- Aug 30, 2006
- Record last updated
- Jun 23, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 2405 Shadelands Dr Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Peder Christiansen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G62892Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
40 Medicare Part D claims for 12 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D.
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: $479.34
5 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 5,661 providers of this specialty with any payment received $5,742.15 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.
Mark Peder Christiansen among 1,131 endocrinology, diabetes & metabolism physician records in California
Mark Peder Christiansen, MD is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2021 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Walnut Creek → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Audrey Arzamendi, M.D.Walnut Creek, CA 945981508159567
- Ali Hamraz, MDWalnut Creek, CA 945981083901961
- Richard Kamrath, M.D.Walnut Creek, CA 945981740226919
- Mark Klebanov, M.D.Walnut Creek, CA 945981861572703
- Robert Noth, M.D.Walnut Creek, CA 945981831172972
- Paria ZarghamravanbakhshWalnut Creek, CA 945981336672591
- Bonnie Kimmel, M.D.Walnut Creek, CA 945971508830944
- Fiona Yuen, M.D.Walnut Creek, CA 945971649513599
Common questions
What is Mark Peder Christiansen, MD's NPI number?
Mark Peder Christiansen, MD's National Provider Identifier (NPI) is 1821108218, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Peder Christiansen, MD located?
The NPPES record lists a practice address at 2405 Shadelands Dr Ste 300, Walnut Creek, CA, 94598. Phone: (925) 939-8585. Providers update this record themselves, so call before visiting.
How can I verify Mark Peder Christiansen, MD's license?
NPPES lists California license number G62892, 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 Mark Peder Christiansen, MD prescribe under Medicare Part D?
In 2024, Mark Peder Christiansen, MD had 40 Medicare Part D claims for 12 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.