NPPES file of Aug 9, 2026

Mark Erdrich, PHARMACIST

Pharmacist · Chula Vista, CA

Mark Erdrich, PHARMACIST is a pharmacist with a practice address in Chula Vista, California, and NPI 1023424140, issued on Jul 9, 2014. Check the license (California 35327, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1023424140
Name
Mark Erdrich
Credential
PHARMACIST
Primary taxonomy
Pharmacist 183500000X
License numbers
35327 CA
8108 NV
Self-reported in NPPES; status is on the state search
Practice location
740 Otay Lakes RD, Chula Vista, CA 91910
Phone
(858) 373-7856
Enumerated
Jul 9, 2014
Record last updated
Jul 9, 2014 (not updated in 12 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 740 Otay Lakes RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mohammad Elhomsy, PHARM.DPharmacist1114201217
  2. Herbert Howell FloresPharmacist1609609510
  3. Joshua Lara, PHDPharmacist1548057656

Verify Mark Erdrich in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 35327
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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50% fewer Medicare Part D claims than the average pharmacist in 2024

59 Medicare Part D claims for 59 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Mark Erdrich59
  2. Specialty average119

Most prescribed

  1. Gavilyte-G58 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.

Mark Erdrich among 32,533 pharmacist records in California

Mark Erdrich, PHARMACIST 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 2014, is newer than 35% of them.

  • NPI issued2014 · 35% of these records are older, 59% 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 updated2014 · 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).

142 pharmacist records list a practice address in Chula Vista

They are 142 of the 5,329 NPPES records with a practice address in Chula Vista, and 32,533 pharmacist records in California.

The 8 pharmacist records with the nearest ZIP codes

  1. Raymundo Alatorre, PHARMDChula Vista, CA 919101679901516
  2. Elvis Atencio, PHARM DChula Vista, CA 919101417342437
  3. Vanessa CaguioaChula Vista, CA 919101811215080
  4. Ramesh ChigurupatiChula Vista, CA 919101912176587
  5. Mohammad Elhomsy, PHARM.DChula Vista, CA 919101114201217
  6. Paul Guidice, RPHChula Vista, CA 919101659778850
  7. Lok-Ting Law, PHARM.DChula Vista, CA 919101942605902
  8. Linh Lieu, PHARMD.Chula Vista, CA 919101548674492

Common questions

What is Mark Erdrich, PHARMACIST's NPI number?

Mark Erdrich, PHARMACIST's National Provider Identifier (NPI) is 1023424140, issued on Jul 9, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Mark Erdrich, PHARMACIST located?

The NPPES record lists a practice address at 740 Otay Lakes RD, Chula Vista, CA, 91910. Phone: (858) 373-7856. Providers update this record themselves, so call before visiting.

How can I verify Mark Erdrich, PHARMACIST's license?

NPPES lists California license number 35327, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Mark Erdrich, PHARMACIST prescribe under Medicare Part D?

In 2024, Mark Erdrich, PHARMACIST had 59 Medicare Part D claims for 59 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.