DR. ALAN ZAJARIAS MD
NPI 1679696579
Internal Medicine - Interventional Cardiology in Saint Louis, MO

Q: What is Alan Zajarias's NPI number?

The NPI number for Alan Zajarias is 1679696579. It was assigned to this individual provider in the NPPES registry on April 8, 2007.

Q: What is Alan Zajarias's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Q: When was this NPI record last updated?

The NPPES record for Alan Zajarias was last updated on September 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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 April 08, 2007PECOS EnrolledAccepts Medicare Assignment

79.29/100

CMS Quality Rating

4921 PARKVIEW PL, DIV IM CARDIOLOGY, STE 8B, SAINT LOUIS, MO 63110(314) 362-1291(314) 362-4278 Get Directions Write a Review

NPPES record last updated: September 15, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 15, 2025, Apr 25, 2024, Apr 10, 2024 and 3 more (6 updates tracked since 2015).

On this page

About Dr. Alan Zajarias Md NPPES

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

DR. ALAN ZAJARIAS MD (NPI 1679696579) is an individual interventional cardiology provider in Saint Louis, Missouri, licensed in Missouri (2003015187) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS, is affiliated with Memorial Hospital, and maintains a secondary practice location in Saint Louis.

NPPES Registry Identity

NPI1679696579

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameDR. ALAN ZAJARIASCredential: MD

Location Address4921 PARKVIEW PL, DIV IM CARDIOLOGY, STE 8BSaint Louis, MO 63110-1032

Mailing Address660 S Euclid AveSaint Louis, MO 63110-1010 · (314) 362-1291 · Fax (314) 362-4278

Phone(314) 362-1291

Fax(314) 362-4278

Sole ProprietorNo

Medical School CMSOtherGraduated 2000

Enumeration DateApril 8, 2007

Last NPPES UpdateSeptember 15, 20256 updates tracked since enumeration

NPPES CertifiedSeptember 15, 2025

✔ NPI 1679696579 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RI0011X

License✔ Licensed in MO · 2003015187

Definition

An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 2003015187 (MO)

4921 PARKVIEW PL, Saint Louis, MO 63110

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Secondary Practice Location 1

Location 1915 N Grand BlvdSaint Louis, MO 63106-1621 · Phone (314) 652-4100

Other Identifiers 1

Medicaid200566602MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cox HealthPlans.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Alan Zajarias 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 ID9739288291

PECOS Enrollment IDI20070625000047

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.

Areas of Expertise CMS Part B claims 19

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.

201 services163 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.

120 services115 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

84 services58 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

75 services71 patients

Replacement of aortic valve through the skin and femoral artery 33361

This procedure, known as Transcatheter Aortic Valve Replacement (TAVR), involves replacing a damaged aortic valve through a small incision in the leg. A catheter is inserted into the femoral artery and guided up to the heart. The new valve is then positioned and deployed, restoring normal blood flow.

50 services50 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

47 services47 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.

47 services44 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

41 services13 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.

37 services37 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

36 services36 patients

Ultrasound evaluation of heart blood vessel or graft with review by radiologist, initial vessel 92978

This procedure involves using ultrasound technology to examine the first vessel of your heart or graft. A radiologist will review the images. It's a non-invasive way to check the health of your heart's blood vessels.

29 services28 patients

Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch 92928

This procedure involves placing a small, mesh tube (stent) in your coronary artery to keep it open. A balloon is used to expand the stent and artery, improving blood flow to your heart. It's typically done for a single artery or branch.

23 services20 patients

Insertion of tube in coronary artery for diagnosis with review by radiologist 93454

This procedure involves placing a small tube into your coronary artery. It helps to identify any blockages or issues within the artery. A radiologist, a doctor specialized in medical imaging, will review the results to ensure accurate diagnosis.

21 services21 patients

Ultrasound evaluation of heart blood vessel during diagnosis or treatment, initial vessel 93571

This procedure involves using ultrasound technology to examine the first blood vessel of your heart. It helps identify any abnormalities or issues, providing crucial information for diagnosis or treatment. It's a safe, non-invasive process.

18 services18 patients

Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist 93458

This procedure involves placing a tube into your left lower heart chamber and coronary artery. It helps doctors diagnose heart conditions by allowing them to view these areas in detail. A radiologist will review the images to ensure accurate diagnosis.

17 services17 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

14 services13 patients

Repair of left upper heart chamber with implant with review by radiologist 33340

This is a procedure to fix a problem in your left upper heart chamber. An implant is used to correct the issue. After the procedure, a radiologist, a doctor who specializes in medical imaging, reviews the images to ensure everything is in order.

13 services13 patients

Ultrasound evaluation of heart blood vessel with review by radiologist 93662

This is a noninvasive procedure using sound waves to capture images of your heart's blood vessels. A radiologist, an expert in interpreting these images, will review the results to check for any abnormalities. This helps to monitor your heart health.

13 services12 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

12 services11 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Memorial Hospital

Acute Care Hospitals · Belleville, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140185

Location4500 Memorial DriveBelleville, IL 62226 · St. Clair County

Emergency services Birthing friendly

Anderson Hospital

Acute Care Hospitals · Maryville, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140289

Location6800 State Route 162Maryville, IL 62062 · Madison County

Emergency services Birthing friendly

Barnes Jewish Hospital

Acute Care Hospitals · Saint Louis, MO

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number260032

LocationOne Barnes-Jewish Hospital PlazaSaint Louis, MO 63110 · St. Louis City County

Emergency services Birthing friendly

Barnes-Jewish West County Hospital

Acute Care Hospitals · Creve Coeur, MO

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260162

Location12634 Olive BoulevardCreve Coeur, MO 63141 · St. Louis County

Emergency services

Christian Hospital Northeast

Acute Care Hospitals · Saint Louis, MO

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260180

Location11133 Dunn RoadSaint Louis, MO 63136 · St. Louis County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$128.28 typical visit price

range $55.65 – $169.38

Typical copayment $32.07 (range $13.91 – $42.34)

Most-billed visit code 99204

Established Patient

$98.37 typical visit price

range $17.76 – $137.92

Typical copayment $24.59 (range $4.44 – $34.48)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

79.29/100

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

Scored as part of a group practice

Quality

71.46

Promoting Interoperability

100

Improvement Activities

Cost

59.51

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.

MS. CHERYL ANNE WOOLSEY PA

Physician Assistant

4921 PARKVIEW PL, DIV SURG HPB, STE 12B
SAINT LOUIS, MO 63110

St. Louis City (314) 747-0410

DR. CHARLES PHILLIPS JONES MD

Urology

4921 PARKVIEW PL, DIV SURG UROLOGY, STE 11C
SAINT LOUIS, MO 63110

St. Louis City (314) 362-8200

DR. PRABHA RANGANATHAN MD

Internal Medicine (Rheumatology)

4921 PARKVIEW PL, DIV IM RHEUMATOLOGY, STE 5C
SAINT LOUIS, MO 63110

St. Louis City (314) 286-2635

DR. RALPH GERARD DACEY JR. MD

Neurological Surgery

4921 PARKVIEW PL, DEPT NEUROLOGICAL SURGERY, STE 6B/6C
SAINT LOUIS, MO 63110

St. Louis City (314) 362-3577

DR. KRASIMIRA MIKHAILOVA MIKHOVA MD

Internal Medicine (Clinical Cardiac Electrophysiology)

4921 PARKVIEW PL, DIV IM CARDIOLOGY, STE 8B
SAINT LOUIS, MO 63110

St. Louis City (314) 362-1291

DR. JEE YOUNG HAN MD

Psychiatry & Neurology (Neurology)

4921 PARKVIEW PL, DIV NEUROLOGY AGING AND DEMENTIA, STE 6C
SAINT LOUIS, MO 63110

St. Louis City (314) 362-1408

MS. MAREN JORGENSEN OT

Occupational Therapist

4921 PARKVIEW PL, DEPT OCCUPATIONAL THERAPY, STE 6F
SAINT LOUIS, MO 63110

St. Louis City (314) 286-1669

DR. ADRIAN SHIFREN MD

Internal Medicine (Pulmonary Disease)

4921 PARKVIEW PL, DIV IM PULMONARY AND CCM, 8TH FL
SAINT LOUIS, MO 63110

St. Louis City (314) 454-8917

DR. MYRA L RUBIO MD

Internal Medicine

4921 PARKVIEW PL, STE 5A
SAINT LOUIS, MO 63110

St. Louis City (314) 747-5900

DR. PETER G TUTEUR MD

Internal Medicine (Pulmonary Disease)

4921 PARKVIEW PL, 8TH FLOOR
SAINT LOUIS, MO 63110

St. Louis City (314) 454-8917

DR. RAMASWAMY GOVINDAN MD

Internal Medicine (Medical Oncology)

4921 PARKVIEW PL, DIV IM MEDICAL ONCOLOGY, STE 7A, 7B, 7C
SAINT LOUIS, MO 63110

St. Louis City (800) 647-2098

DR. CAROLYN KAY MCCOURT MD

Obstetrics & Gynecology (Gynecologic Oncology)

4921 PARKVIEW PL, DIV OBGYN GYNECOLOGIC ONCOLOGY, STE 13C
SAINT LOUIS, MO 63110

St. Louis City (314) 362-3181

DR. ADEL BASSAM TABCHY MD

Internal Medicine (Medical Oncology)

4921 PARKVIEW PL, 7TH FLOOR
SAINT LOUIS, MO 63110

St. Louis City (314) 747-1171

DR. BRIAN ADAMS KELLY MD

Orthopaedic Surgery (Pediatric Orthopaedic Surgery)

4921 PARKVIEW PL, DEPT ORTHOPAEDIC SURGERY, STE 6A/6B/12A
SAINT LOUIS, MO 63110

St. Louis City (314) 514-3500

DR. NICHOLAS ANDREW PALLOTTA MD

Orthopaedic Surgery (Orthopaedic Surgery of the Spine)

4921 PARKVIEW PL, DEPT ORTHOPAEDIC SURGERY, STE 6A/6B/12A
SAINT LOUIS, MO 63110

St. Louis City (314) 514-3500

MS. LORNA C KAHN PT

Physical Therapist

4921 PARKVIEW PL, DEPT PHYSICAL THERAPY, STE 6F
SAINT LOUIS, MO 63110

St. Louis City (314) 286-1940

MS. BRENDA G GOTTER AUD

Audiologist

4921 PARKVIEW PL, DEPT OTOLARYNGOLOGY, STE 11A
SAINT LOUIS, MO 63110

St. Louis City (314) 362-7509

DR. KAN LIU MD

Internal Medicine (Cardiovascular Disease)

4921 PARKVIEW PL, DIV IM CARDIOLOGY, STE 8B
SAINT LOUIS, MO 63110

St. Louis City (314) 362-1291

DR. SINA A JASIM MD

Internal Medicine (Endocrinology, Diabetes & Metabolism)

4921 PARKVIEW PL, DIV IM ENDOCRINOLOGY, STE 5C
SAINT LOUIS, MO 63110

St. Louis City (314) 362-3500

MS. SUSAN ANNETTE WILLIAMS PA

Physician Assistant (Medical)

4921 PARKVIEW PL, DIV NEUROLOGY EPILEPSY, STE 6C
SAINT LOUIS, MO 63110

St. Louis City (314) 362-7845

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 Alan Zajarias's NPI number?

The NPI number for Alan Zajarias is 1679696579. It was assigned to this individual provider in the NPPES registry on April 8, 2007.

Where is Alan Zajarias located?

Alan Zajarias practices at 4921 Parkview Pl Div Im Cardiology, Ste 8B, Saint Louis, MO 63110. The listed phone number is (314) 362-1291.

What is Alan Zajarias's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Is Alan Zajarias enrolled in Medicare?

Yes. Alan Zajarias 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.

What insurance does Alan Zajarias accept?

Health plans from Cox HealthPlans list Alan Zajarias as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Alan Zajarias affiliated with any hospitals?

According to CMS data, Alan Zajarias is affiliated with Memorial Hospital, Anderson Hospital, Barnes Jewish Hospital, Barnes-Jewish West County Hospital and Christian Hospital Northeast.

When was this NPI record last updated?

The NPPES record for Alan Zajarias was last updated on September 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.