Dierich Mark Kaiser, MD
Psychiatry Physician · Harrisburg, PA
Dierich Mark Kaiser, MD is a psychiatry physician with a practice address in Harrisburg, Pennsylvania, and NPI 1205990256, issued on Dec 21, 2006. Check the license (Pennsylvania MD445541, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Dierich Mark Kaiser
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- MD445541 PA
MDD30059 DC
D0058359 MD
0101055431 VA
Self-reported in NPPES; status is on the state search - Practice location
- 2501 N 3RD St, Harrisburg, PA 17110
- Phone
- (717) 782-6430
- Enumerated
- Dec 21, 2006
- Record last updated
- May 14, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (717) 782-6431
- Medicare enrollment
- Enrolled (PECOS I20100811000961); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,662 in Pennsylvania → Look up another NPI →
Also registered at 2501 N 3RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sumayya Afreen, MDStudent in an Organized Health Care Education/Training Program1205621059
- Olayinka Ajayi, M.D.Child & Adolescent Psychiatry Physician1215185103
- Alfredo Bellon Velasco, M.DPsychiatry Physician1821372640
- Vonda Blasick, CRNPFamily Nurse Practitioner1518074152
- Spencer Brown, MDPsychiatry Physician1902837552
- Thomas Buckley, DOStudent in an Organized Health Care Education/Training Program1851086771
Verify Dierich Mark Kaiser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD445541Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average psychiatry physician in 2024
3,172 Medicare Part D claims for 140 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Quetiapine Fumarate238 claims
- Olanzapine165 claims
- Sertraline Hcl154 claims
- Oxcarbazepine136 claims
- Mirtazapine128 claims
- Alprazolam117 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.
Bills Medicare through 2 group practices
- Hispanic Community Counseling ServicesPhiladelphia, PA
- Western Tidewater Community MentalSuffolk, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dierich Mark Kaiser among 2,662 psychiatry physician records in Pennsylvania
Dierich Mark Kaiser, MD is one of 2,662 psychiatry physician records with a practice address in Pennsylvania. 72% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 61% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated1992 · median 2003 among the 1,186 with a school on file
- Record last updated2013 · 60% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Pennsylvania
There are 2,662 psychiatry physician records in Pennsylvania.
All 2,662 in Pennsylvania → Every provider in Harrisburg → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Alfredo Bellon Velasco, M.DHarrisburg, PA 171101821372640
- Spencer Brown, MDHarrisburg, PA 171101902837552
- Katharine Dalke, MDHarrisburg, PA 171101881985935
- Andrew Francis, M.D.Harrisburg, PA 171101881634509
- Robert Gonzalez, M.D.Harrisburg, PA 171101194962845
- Julie Graziane, MDHarrisburg, PA 171101366672180
- Mustafa Kaleem, MDHarrisburg, PA 171101578724258
- Elisabeth Kunkel, M.D.Harrisburg, PA 171101801817051
Common questions
What is Dierich Mark Kaiser, MD's NPI number?
Dierich Mark Kaiser, MD's National Provider Identifier (NPI) is 1205990256, issued on Dec 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dierich Mark Kaiser, MD located?
The NPPES record lists a practice address at 2501 N 3RD St, Harrisburg, PA, 17110. Phone: (717) 782-6430. Providers update this record themselves, so call before visiting.
How can I verify Dierich Mark Kaiser, MD's license?
NPPES lists Pennsylvania license number MD445541, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Dierich Mark Kaiser, MD prescribe under Medicare Part D?
In 2024, Dierich Mark Kaiser, MD had 3,172 Medicare Part D claims for 140 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.