NPPES file of Aug 9, 2026

Daren Stephen Primack, MD

Phlebology Physician · Stockton, CA

Daren Stephen Primack, MD is a phlebology physician with a practice address in Stockton, California, and NPI 1215905260, issued on Mar 8, 2006. Check the license (California G68135, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1215905260
Name
Daren Stephen Primack
Credential
MD
Primary taxonomy
Phlebology Physician 202K00000X
License number
G68135 CA
Self-reported in NPPES; status is on the state search
Practice location
1801 E March LN, Stockton, CA 95210
Phone
(209) 464-3615
Enumerated
Mar 8, 2006
Record last updated
Jan 22, 2026
Fax
(209) 464-1311
Medicaid ID
00G681350 CA
Medicare enrollment
Enrolled (PECOS I20080731000484); accepts Medicare assignment
Medical or professional school
Albert Einstein College Of Medicine Of Yeshiva University, 1988
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1801 E March LN

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

  1. Bader Abu Ghalyoun, MDInterventional Cardiology Physician1740492214
  2. Agnes Alicar, NURSE PRACTITIONERFamily Nurse Practitioner1629240049
  3. James Avery, P.A.Physician Assistant1790080182
  4. Tatiana Chiprez Vargas, ASWClinical Social Worker1851109425
  5. Josebelo Chong, MDSpecialist1891815791
  6. John Depolo, M.D.Pulmonary Disease Physician1619907359

Verify Daren Stephen Primack 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 G68135
    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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13.0 times the Medicare Part D claims of the average phlebology physician in 2024

2,423 Medicare Part D claims for 282 beneficiaries, against an average of 187 among the 80 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of claims.

  1. Daren Primack2,423
  2. Specialty average187

Most prescribed

  1. Xarelto597 claims
  2. Metoprolol Succinate229 claims
  3. Jardiance185 claims
  4. Atorvastatin Calcium150 claims
  5. Rosuvastatin Calcium117 claims
  6. Carvedilol116 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.

The MIPS final score for 2023 (Medicare payment program): 97.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score84.2
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $5,826.61

40 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 81 providers of this specialty with any payment received $1,201.67 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Daren Primack$5,826.61
  2. Specialty average$1,201.67

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Adventist Health Physicians NetworkLodi, CA
  2. Lodi Memorial Hospital Association IncLodi, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Daren Stephen Primack among 27 phlebology physician records in California

Daren Stephen Primack, MD is one of 27 phlebology physician records with a practice address in California. 33% 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 0% of them.

  • NPI issued2006 · 0% of these records are older, 67% newer
  • In a Medicare fileYes · 33% of these records are
  • In the CMS Doctors and Clinicians fileYes · 37% of these records are
  • Graduated1988 · median 1998 among the 10 with a school on file
  • Record last updated2026 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 202K00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Phlebology Physician providers in California

There are 27 phlebology physician records in California.

The 8 phlebology physician records with the nearest ZIP codes

  1. Walter Lech, M.D.San Jose, CA 951281215073853
  2. Martin Deilmann, M.D.Sonora, CA 953701598024382
  3. Vijaya Thakur, M.D.Turlock, CA 953821972559706
  4. Anjani Thakur, M.D.Turlock, CA 953821477509529
  5. Banisha Evans, CPT LLElk Grove, CA 956241780342675
  6. Nicholas Hyde, MDWalnut Creek, CA 945961255511788
  7. Mario Malvehy, M.D.Pleasanton, CA 945881386619054
  8. Haroon GhiasiBay Point, CA 945651225900608

Common questions

What is Daren Stephen Primack, MD's NPI number?

Daren Stephen Primack, MD's National Provider Identifier (NPI) is 1215905260, issued on Mar 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Daren Stephen Primack, MD located?

The NPPES record lists a practice address at 1801 E March LN, Stockton, CA, 95210. Phone: (209) 464-3615. Providers update this record themselves, so call before visiting.

How can I verify Daren Stephen Primack, MD's license?

NPPES lists California license number G68135, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Daren Stephen Primack, MD prescribe under Medicare Part D?

In 2024, Daren Stephen Primack, MD had 2,423 Medicare Part D claims for 282 beneficiaries; the average among phlebology physician prescribers was 187. Part D covers Medicare prescriptions only.

What is Daren Stephen Primack, MD's MIPS final score?

The 2023 MIPS final score is 97.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.