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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

AIJAZ AHMED MD
NPI 1447351747
Internal Medicine - Hepatology in Stanford, CA

Active since September 26, 2006PECOS Enrolled
96.5/100
CMS Quality Rating
300 PASTEUR DR, STANFORD, CA 94305(650) 723-4000 Get Directions Write a Review

NPPES record last updated: September 3, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Sep 3, 2026, Apr 12, 2024, Dec 20, 2022 and 2 more (5 updates tracked since 2021).

About Aijaz Ahmed Md NPPES

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

AIJAZ AHMED MD (NPI 1447351747) is an individual hepatology provider in Stanford, California, licensed in California (A60520) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Renown Regional Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1447351747
Entity TypeIndividualMale
Primary Taxonomy207RI0008X
Provider Legal NameAIJAZ AHMEDCredential: MD
Location Address300 PASTEUR DRStanford, CA 94305-2200
Mailing Address300 Pasteur DrStanford, CA 94305-2200 · (650) 723-4000
Phone(650) 723-4000
Sole ProprietorNo
Medical School CMSOtherGraduated 1990
Enumeration DateSeptember 26, 2006
Last NPPES UpdateSeptember 3, 20265 updates tracked since enumeration
NPPES CertifiedSeptember 3, 2026
✔ NPI 1447351747 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · HepatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RI0008X
License✔ Licensed in CA · A60520
Definition
The discipline of Hepatology encompasses the structure, function, and diseases of the liver and biliary tract. The American Board of Internal Medicine considers Hepatology part of the subspecialty of gastroenterology. Physicians who identify themselves as Hepatologists usually, but not always, have been trained in gastrointestinal programs.
Also ListedFamily Medicine · Obesity MedicineTaxonomy 207QB0002X · License A60520 (CA)
Also ListedInternal Medicine · GastroenterologyTaxonomy 207RG0100X · License A60520 (CA)
Also ListedInternal Medicine · Transplant HepatologyTaxonomy 207RT0003X · License A60520 (CA)
300 PASTEUR DR, Stanford, CA 94305
Open in Google Maps ↗

Secondary Practice Locations 2

Location 11255 Las Tablas Rd Ste 201Templeton, CA 93465-9750 · Phone (805) 739-3890 · Fax (805) 434-0023
Location 21551 Bishop St Ste 510San Luis Obispo, CA 93401-4665 · Phone (805) 434-5530

Other Identifiers 1

Medicaid00A605200CA

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

Aijaz Ahmed 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 ID4284709866
PECOS Enrollment IDI20140103001117, I20141006002517
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 8

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.
292 services226 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.
163 services43 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.
136 services116 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
66 services52 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
Measurement of liver stiffness 91200
Measurement of liver stiffness is a non-invasive procedure that helps assess the health of your liver. It uses sound waves to detect the hardness of the liver tissue, which can indicate conditions like fibrosis or cirrhosis. It's a simple, painless test that provides valuable information about your liver's health.
25 services25 patients

Hospital Affiliations CMS Care Compare

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

Renown Regional Medical Center

Acute Care Hospitals · Reno, NV
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number290001
Location1155 Mill StreetReno, NV 89502 · Washoe County
Emergency services Birthing friendly

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.

96.5/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality80.34
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 11

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035
Other-Enteral and Parenteral · category OB006N
3 suppliers11 claims330 services$4.36 avg. paid by Medicare
Enteral nutrition infusion pump, any type B9002
Other-Enteral and Parenteral · category OB005N
3 suppliers11 claims11 services$52.59 avg. paid by Medicare
Cyclosporine, oral, 100 mg J7502
Treatment-Treatment - Miscellaneous · category RX029N
3 suppliers18 claims1,080 services$1.65 avg. paid by Medicare
Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
18 suppliers262 claims22,932 services$0.30 avg. paid by Medicare
Prednisone, immediate release or delayed release, oral, 1 mg J7512
Treatment-Treatment - Miscellaneous · category RX029N
1 supplier14 claims3,750 services$0.01 avg. paid by Medicare
Cyclosporine, oral, 25 mg J7515
Treatment-Treatment - Miscellaneous · category RX029N
4 suppliers40 claims6,060 services$0.58 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

PRISTA CHARUWORN MD
Internal Medicine (Gastroenterology)
300 PASTEUR DR, ALWAY BUILD M211, MC 5187
STANFORD, CA 94305
Santa Clara County (650) 723-6661
ANDREW CHARLES PICEL M.D
Radiology (Vascular & Interventional Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
MATTHEW A WRIGHT M.D. PH.D.
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
DR. QUAZI ZUBAIR AL-TARIQ M.D.
Radiology (Diagnostic Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
ANGIE DEE MURKINS NP
Nurse Practitioner
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
DR. JAMSHID GHAJAR MD PHD
Neurological Surgery
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000
SARA BAKHTARY M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
300 PASTEUR DR, LANE 235
STANFORD, CA 94305
Santa Clara County (650) 723-5252
YU KUANG LAI MD
Internal Medicine (Critical Care Medicine)
300 PASTEUR DR
STANFORD, CA 94305
Santa Clara County (650) 723-4000

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 Aijaz Ahmed's NPI number?

The NPI number for Aijaz Ahmed is 1447351747. It was assigned to this individual provider in the NPPES registry on September 26, 2006.

Where is Aijaz Ahmed located?

Aijaz Ahmed practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.

What is Aijaz Ahmed's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hepatology, with taxonomy code 207RI0008X.

Is Aijaz Ahmed enrolled in Medicare?

Yes. Aijaz Ahmed 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.

Is Aijaz Ahmed affiliated with any hospitals?

According to CMS data, Aijaz Ahmed is affiliated with Renown Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Aijaz Ahmed was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 days 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.