DR. DAREN STEPHEN PRIMACK MD
NPI 1215905260
Phlebology in Stockton, CA

Q: What is Daren Primack's NPI number?

The NPI number for Daren Primack is 1215905260. It was assigned to this individual provider in the NPPES registry on March 8, 2006.

Q: What is Daren Primack's specialty?

The primary specialty registered for this NPI is Phlebology with taxonomy code 202K00000X.

Q: When was this NPI record last updated?

The NPPES record for Daren Primack was last updated on January 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 08, 2006PECOS EnrolledAccepts Medicare Assignment

97.12/100

CMS Quality Rating

1801 E MARCH LN, STE. D400, STOCKTON, CA 95210(209) 464-3615(209) 464-1311 Get Directions Write a Review

NPPES record last updated: January 22, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 22, 2026, Mar 7, 2023 (2 updates tracked since 2023).

On this page

About Dr. Daren Stephen Primack Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DAREN STEPHEN PRIMACK MD (NPI 1215905260) is an individual phlebology provider in Stockton, California, licensed in California (G68135) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (1988).

NPPES Registry Identity

NPI1215905260

Entity TypeIndividualMale

Primary Taxonomy202K00000X

Provider Legal NameDR. DAREN STEPHEN PRIMACKCredential: MD

Location Address1801 E MARCH LN, STE. D400Stockton, CA 95210-6629

Mailing Address1801 E March Ln Ste D400Stockton, CA 95210-6675 · (209) 464-3615 · Fax (209) 464-1311

Phone(209) 464-3615

Fax(209) 464-1311

Sole ProprietorNo

Medical School CMSAlbert Einstein College Of Medicine Of Yeshiva UniversityGraduated 1988

Enumeration DateMarch 8, 2006

Last NPPES UpdateJanuary 22, 20262 updates tracked since enumeration

NPPES CertifiedJanuary 22, 2026

✔ NPI 1215905260 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhlebologyAllopathic & Osteopathic Physicians

Taxonomy Code202K00000X

License✔ Licensed in CA · G68135

Definition

Phlebology is the medical discipline that involves the diagnosis and treatment of venous disorders, including spider veins, varicose veins, chronic venous insufficiency, venous leg ulcers, congenital venous abnormalities, venous thromboembolism and other disorders of venous origin. A phlebologist has attained a minimum of 50 hours of CME units in phlebology-related courses, and is knowledgeable of and trained in a variety of diagnostic techniques including physical examination, venous imaging techniques such as duplex ultrasound, CT and MR, plethysmographic techniques and laboratory evaluation related to venous thromboembolism. The phlebologist is also trained in a variety of therapeutic interventions, which may include compression, sclerotherapy, cutaneous vascular laser, endovenous thermoablation procedures (laser and radiofrequency) endovenous chemical ablation, surgical procedures (e.g., ambulatory phlebectomy, venous ligation), vasoactive medications and the management of venous thromboembolism.

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License G68135 (CA)

1801 E MARCH LN, Stockton, CA 95210

Open in Google Maps ↗

Other Identifiers 2

Medicaid00G681350CA

OtherG68135CA · Medical License Number

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Daren Stephen Primack Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9931144110

PECOS Enrollment IDI20080731000484

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Daren Primack reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Adventist Health Physicians Network

0.1 mi

Cardiovascular Disease

1801 E MARCH LN STE D400
Stockton, CA 95210

Reassigned Medicare billing, California enrollment
678 clinicians in this Medicare group

NPI 1457931081 (209) 464-3615

Lodi Memorial Hospital Association, Inc

5.6 mi

Primary Care

10200 TRINITY PARKWAY, SUITE 102
Stockton, CA 95219

Reassigned Medicare billing, California enrollment
221 clinicians in this Medicare group

NPI 1982860995 (209) 948-0808

Delta Radiology, Inc.

8.1 mi

Specialist

975 S FAIRMONT AVE
Lodi, CA 95240

Reassigned Medicare billing, California enrollment
34 clinicians in this Medicare group

NPI 1881728327 (209) 334-3411

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 23

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

440 services286 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

304 services252 patients

Injection, regadenoson, 0.1 mg J2785

Regadenoson injection, 0.1 mg, is a medication used to help visualize the heart during a stress test. It works by increasing blood flow in the arteries of the heart. It's injected into a vein and is generally well-tolerated.

196 services49 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

151 services150 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

134 services132 patients

Technetium tc-99m tetrofosmin, diagnostic, per study dose A9502

Technetium Tc-99m Tetrofosmin is a radiopharmaceutical used in diagnostic imaging. It helps highlight areas of concern in the heart by emitting signals captured by a special camera. This assists doctors in detecting heart conditions.

128 services64 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

94 services72 patients

Evaluation of cardiac rhythm monitor system, remote up to 30 days 93298

This procedure involves remotely monitoring your heart rhythm for up to 30 days. A small device will record your heart's activity, which can be accessed by your healthcare team. This aids in diagnosing any irregularities or issues with your heart function.

83 services11 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

64 services64 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician 93015

An exercise or drug-induced heart stress test with ECG is a procedure performed by a doctor to assess how your heart responds to exertion. It involves monitoring your heart's electrical activity while you exercise or after medication is given to mimic exercise effects.

62 services62 patients

Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days 93296

This procedure involves remotely monitoring your pacemaker or implantable defibrillator system. Over a 90-day period, we check the device's performance and your heart's activity. This helps ensure the device is functioning properly and providing the best possible support for your heart health.

61 services30 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

49 services49 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

49 services49 patients

Ultrasound study of one arm or leg veins with compression and maneuvers 93971

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

45 services28 patients

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

44 services44 patients

Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days 93294

This procedure evaluates your pacemaker system remotely for up to 90 days. It checks whether single, dual, multiple lead, or leadless pacemakers are working properly. It's a safe, convenient way to ensure your heart device is functioning optimally.

42 services20 patients

Destruction of first incompetent vein of arm or leg using radiofrequency and imaging guidance 36475

This procedure involves using radiofrequency energy, a type of heat energy, to close off an unhealthy vein in your arm or leg. Imaging guidance helps ensure precise targeting of the vein. This helps improve blood flow by rerouting it through healthier veins.

35 services21 patients

Smoking and tobacco use intensive counseling, 4-10 minutes 99406

This service provides brief, intensive counseling (4-10 minutes) to support you in quitting smoking or tobacco use. It involves discussing the risks of tobacco use, benefits of quitting, and strategies to help you stop. It's a critical step towards a healthier lifestyle.

29 services17 patients

Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days 93295

This procedure involves remotely monitoring your implantable defibrillator system, which can have single, dual, or multiple leads. Over a period of up to 90 days, the system's performance is evaluated to ensure it's working properly and providing the necessary heart rhythm support.

21 services11 patients

Programming of dual lead pacemaker system 93280

Programming of a dual lead pacemaker system is a procedure to adjust your heart's pacemaker settings. This process involves a small device, called a programmer, that communicates with your pacemaker to ensure it's working optimally for your heart's needs.

18 services15 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

16 services15 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

13 services12 patients

Routine electrocardiogram (ecg) using at least 12 leads with tracing 93005

An Electrocardiogram (ECG) is a simple, painless test that records the heart's electrical activity. Using 12 leads attached to your skin, it generates a tracing of your heart rhythm. It helps detect any heart problems by showing the timing and strength of electrical signals passing through each part of your heart.

12 services12 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.12/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

84.24

Promoting Interoperability

100

Improvement Activities

Reported Quality Measures

e-Prescribing

At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.

91%548 patients4/55-star benchmark: 100%

Medication Reconciliation

The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.

99%602 patients4/55-star benchmark: 100%

Patient-Specific Education

The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.

97%473 patients4/55-star benchmark: 100%

Provide Patient Access

At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…

40%473 patients2/55-star benchmark: 100%

Secure Messaging

For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…

15%473 patients1/55-star benchmark: 79%

Statin Therapy for the Prevention and Treatment of Cardiovascular Disease

Percentage of the following patients - all considered at high risk of cardiovascular events - who were prescribed or were on statin therapy during the measurement period: - Adults aged >= 21 years who were previously diagnosed with or currently have an active…

88%610 patients4/55-star benchmark: 89%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DELTA HEART & MEDICAL CLINIC, INC.

Internal Medicine (Interventional Cardiology)

1801 E MARCH LN, A-170
STOCKTON, CA 95210

San Joaquin County (209) 951-9884

MIROSLAV DJOKIC M.D. INC.

Internal Medicine (Pulmonary Disease)

1801 E MARCH LN, SUITE C300
STOCKTON, CA 95210

San Joaquin County (209) 464-6422

VALLEY KIDNEY CLINIC INC

Specialist

1801 E MARCH LN, SUITE B265
STOCKTON, CA 95210

San Joaquin County (209) 546-1868

SMART PHARMACY, LLC

Pharmacy (Community/Retail Pharmacy)

1801 E MARCH LN, BLDG B STE 280
STOCKTON, CA 95210

San Joaquin County (209) 474-2888

PACIFIC SLEEP DISORDERS CENTER A CALIFORNIA GENERAL PARTNERSHIP

Internal Medicine (Sleep Medicine)

1801 E MARCH LN, SUITE C310
STOCKTON, CA 95210

San Joaquin County (209) 465-5731

KHANH QUOC NGUYEN N.P

Nurse Practitioner

1801 E MARCH LN
STOCKTON, CA 95210

San Joaquin County (209) 954-3100

VIJAYSRI NANNAPANENI

Pharmacist

1801 E MARCH LN, SUITE B280
STOCKTON, CA 95210

San Joaquin County (209) 474-2888

ALAA GABI MD

Internal Medicine (Interventional Cardiology)

1801 E MARCH LN
STOCKTON, CA 95210

San Joaquin County (209) 464-3615

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Daren Primack's NPI number?

The NPI number for Daren Primack is 1215905260. It was assigned to this individual provider in the NPPES registry on March 8, 2006.

Where is Daren Primack located?

Daren Primack practices at 1801 E March Ln Ste. D400, Stockton, CA 95210. The listed phone number is (209) 464-3615.

What is Daren Primack's specialty?

The primary specialty registered for this NPI is Phlebology with taxonomy code 202K00000X.

Is Daren Primack enrolled in Medicare?

Yes. Daren Primack is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Daren Primack's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Daren Primack reassigns Medicare benefits to 3 organizations: Adventist Health Physicians Network (Stockton, CA), Lodi Memorial Hospital Association, Inc (Stockton, CA) and Delta Radiology, Inc. (Lodi, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Daren Primack's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Daren Primack was last updated on January 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.