Mark Alan Hacholski, M.D.
Family Medicine Physician · Chula Vista, CA
Mark Alan Hacholski, M.D. is a family medicine physician with a practice address in Chula Vista, California, and NPI 1568995694, issued on Apr 5, 2017. Check the license (California A169591, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Alan Hacholski
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- A169591 CA
84641 SC
Self-reported in NPPES; status is on the state search - Practice location
- 525 Third Ave, Chula Vista, CA 91910
- Phone
- (619) 515-2424
- Enumerated
- Apr 5, 2017
- Record last updated
- Dec 13, 2024
- Medicaid ID
- 846419 SC
- Medicare enrollment
- Enrolled (PECOS I20221012002666); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 525 Third Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Alan Hacholski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A169591Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average family medicine physician in 2024
1,851 Medicare Part D claims for 329 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 12 claims were for opioids.
Most prescribed
- Atorvastatin Calcium123 claims
- Losartan Potassium103 claims
- Levothyroxine Sodium82 claims
- Metformin Hcl73 claims
- Rosuvastatin Calcium60 claims
- Amlodipine Besylate58 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 one group practice
- Sharp Rees-Stealy Medical Group IncChula Vista, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Alan Hacholski among 17,133 family medicine physician records in California
Mark Alan Hacholski, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 79% of them.
- NPI issued2017 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2017 · median 2005 among the 10,652 with a school on file
- Record last updated2024 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
119 family medicine physician records list a practice address in Chula Vista
They are 119 of the 5,329 NPPES records with a practice address in Chula Vista, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Chula Vista → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ovidiu Alb, M.D.Chula Vista, CA 919101356335731
- Susanna Chou, M.D.Chula Vista, CA 919101104889724
- Daisy Damasco-Gutierrez, MDChula Vista, CA 919101700841582
- Reuben Farris, MDChula Vista, CA 919101699749911
- Carol Gilmore, M.D.Chula Vista, CA 919101245264530
- Jerome Glincosky, PACChula Vista, CA 919101275507592
- Paul Hubley, MDChula Vista, CA 919101568496974
- Julie Keeler, DOChula Vista, CA 919101912963109
Common questions
What is Mark Alan Hacholski, M.D.'s NPI number?
Mark Alan Hacholski, M.D.'s National Provider Identifier (NPI) is 1568995694, issued on Apr 5, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Mark Alan Hacholski, M.D. located?
The NPPES record lists a practice address at 525 Third Ave, Chula Vista, CA, 91910. Phone: (619) 515-2424. Providers update this record themselves, so call before visiting.
How can I verify Mark Alan Hacholski, M.D.'s license?
NPPES lists California license number A169591, 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 Alan Hacholski, M.D. prescribe under Medicare Part D?
In 2024, Mark Alan Hacholski, M.D. had 1,851 Medicare Part D claims for 329 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.