Clark Dan Ma
Pharmacist · Palo Alto, CA
Clark Dan Ma is a pharmacist with a practice address in Palo Alto, California, and NPI 1891300810, issued on Sep 15, 2020. Check the license (California 83135, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Clark Dan Ma
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 83135 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3801 Miranda Ave, Palo Alto, CA 94304
- Phone
- (650) 493-5000
- Enumerated
- Sep 15, 2020
- Record last updated
- Sep 15, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Also registered at 3801 Miranda Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christelle Jade AbrenicaInfusion Therapy Registered Nurse1770470411
- Laurie Ackerman, LCSWClinical Social Worker1699797001
- Russell Acob, RNRegistered Nurse1235757154
Verify Clark Dan Ma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 83135Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% fewer Medicare Part D claims than the average pharmacist in 2024
96 Medicare Part D claims for 55 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Warfarin Sodium57 claims
- Enoxaparin Sodium36 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.
Clark Dan Ma among 32,533 pharmacist records in California
Clark Dan Ma is one of 32,533 pharmacist records with a practice address in California. 15% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 73% of them.
- NPI issued2020 · 73% of these records are older, 21% newer
- In a Medicare fileYes · 15% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2020 · 76% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
261 pharmacist records list a practice address in Palo Alto
They are 261 of the 7,617 NPPES records with a practice address in Palo Alto, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in Palo Alto → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Thuy Ho, BSPalo Alto, CA 943041710087598
- Douglas Klahold, PHARMDPalo Alto, CA 943041518072750
- Shelli Koszdin, PHARM.D.Palo Alto, CA 943041831297944
- Randell Miyahara, PHARM.D.Palo Alto, CA 943041134141567
- Larry Mole, PHARMDPalo Alto, CA 943041124047832
- Emily Moore, PHARM.D.Palo Alto, CA 943041518978725
- Nancy Nguyen, PHARM.D.Palo Alto, CA 943041972513315
- Sheetal Patel, PHARMDPalo Alto, CA 943041659470359
Common questions
What is Clark Dan Ma's NPI number?
Clark Dan Ma's National Provider Identifier (NPI) is 1891300810, issued on Sep 15, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Clark Dan Ma located?
The NPPES record lists a practice address at 3801 Miranda Ave, Palo Alto, CA, 94304. Phone: (650) 493-5000. Providers update this record themselves, so call before visiting.
How can I verify Clark Dan Ma's license?
NPPES lists California license number 83135, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Clark Dan Ma prescribe under Medicare Part D?
In 2024, Clark Dan Ma had 96 Medicare Part D claims for 55 beneficiaries; the average among pharmacist prescribers was 119. 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.