Mark Jeffrey Schiller, M.D.
Psychiatry Physician · Corte Madera, CA
Mark Jeffrey Schiller, M.D. is a psychiatry physician with a practice address in Corte Madera, California, and NPI 1245445170, issued on May 14, 2007. Check the license (California G76519, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Jeffrey Schiller
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- G76519 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Tamal Plz Ste 200, Corte Madera, CA 94925
- Phone
- (415) 945-9870
- Enumerated
- May 14, 2007
- Record last updated
- Jan 29, 2025
- Fax
- (415) 945-9325
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 100 Tamal Plz Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alexandra Del Prete, PSYDStudent in an Organized Health Care Education/Training Program1003430752
- Elizabeth Klinger, LPCCProfessional Counselor1841703279
- Cassandra Lloyd, PSYDPsychologist1174292528
Verify Mark Jeffrey Schiller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G76519Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average psychiatry physician in 2024
452 Medicare Part D claims for 42 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin48 claims
- Trazodone Hcl46 claims
- Bupropion Xl39 claims
- Mirtazapine37 claims
- Clonazepam27 claims
- Alprazolam26 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: $994.18
44 payments; by number, the most common kind was food and beverage; the largest payer was Iti, Inc. (d/b/a Intra-Cellular Therapies, Inc.). The 13,693 providers of this specialty with any payment received $4,954.93 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 Jeffrey Schiller among 8,673 psychiatry physician records in California
Mark Jeffrey Schiller, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 33% of them.
- NPI issued2007 · 33% of these records are older, 48% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
16 psychiatry physician records list a practice address in Corte Madera
They are 16 of the 365 NPPES records with a practice address in Corte Madera, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Corte Madera → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Scott Barshack, M.D.Corte Madera, CA 949251962502948
- Omri Berger, M.D.Corte Madera, CA 949251639351687
- Madison Buchanan, MDCorte Madera, CA 949251679993083
- Charles Fleckles, MDCorte Madera, CA 949251396753232
- Nazineh Huff, MDCorte Madera, CA 949251255522264
- Patricia Jones, MDCorte Madera, CA 949251750405577
- Judith Keins, M.D.Corte Madera, CA 949251083821912
- Arnold Knepfer, M.D.Corte Madera, CA 949251134117435
Common questions
What is Mark Jeffrey Schiller, M.D.'s NPI number?
Mark Jeffrey Schiller, M.D.'s National Provider Identifier (NPI) is 1245445170, issued on May 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark Jeffrey Schiller, M.D. located?
The NPPES record lists a practice address at 100 Tamal Plz Ste 200, Corte Madera, CA, 94925. Phone: (415) 945-9870. Providers update this record themselves, so call before visiting.
How can I verify Mark Jeffrey Schiller, M.D.'s license?
NPPES lists California license number G76519, 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 Jeffrey Schiller, M.D. prescribe under Medicare Part D?
In 2024, Mark Jeffrey Schiller, M.D. had 452 Medicare Part D claims for 42 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.