JOSEPH DEMETRIUS HERNANDEZ MD, PHD
NPI 1104052232
Allergy & Immunology in Palo Alto, CA

Q: What is Joseph Hernandez's NPI number?

The NPI number for Joseph Hernandez is 1104052232. It was assigned to this individual provider in the NPPES registry on June 3, 2009.

Q: What is Joseph Hernandez's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Q: When was this NPI record last updated?

The NPPES record for Joseph Hernandez was last updated on April 26, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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 June 03, 2009PECOS EnrolledAccepts Medicare Assignment

76.5/100

CMS Quality Rating

725 WELCH RD, PALO ALTO, CA 94304(650) 497-8000 Get Directions Write a Review

NPPES record last updated: April 26, 2024. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Joseph Demetrius Hernandez Md, Phd NPPES

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

JOSEPH DEMETRIUS HERNANDEZ MD, PHD (NPI 1104052232) is an individual allergy & immunology provider in Palo Alto, California, licensed in California (A107450) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, maintains a secondary practice location in Stanford, and is a graduate of University Of California, Geffen School Of Medicine (2007).

NPPES Registry Identity

NPI1104052232

Entity TypeIndividualMale

Primary Taxonomy207K00000X

Provider Legal NameJOSEPH DEMETRIUS HERNANDEZCredential: MD, PHD

Location Address725 WELCH RDPalo Alto, CA 94304-1601

Mailing Address725 Welch RdPalo Alto, CA 94304-1601 · (650) 497-8000

Phone(650) 497-8000

Sole ProprietorNo

Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 2007

Enumeration DateJune 3, 2009

Last NPPES UpdateApril 26, 2024

NPPES CertifiedApril 26, 2024

✔ NPI 1104052232 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

License✔ Licensed in CA · A107450

Definition

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

Also ListedPediatricsTaxonomy 208000000X · License A107450 (CA)

725 WELCH RD, Palo Alto, CA 94304

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Secondary Practice Location 1

Location 1269 Campus Dr, Immunology and Allergy, CCSR 3215Stanford, CA 94305-5366 · Phone (650) 723-5227

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

Joseph Demetrius Hernandez Md, Phd 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 ID3375786486

PECOS Enrollment IDI20130821000158

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

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.

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.

16 services15 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.

76.5/100

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

Scored as part of a group practice

Quality

74.31

Promoting Interoperability

100

Improvement Activities

Cost

43.95

Referred Medical Equipment & Supplies CMS DME claims 3

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

Supplies for maintenance of non-insulin drug infusion catheter, per week (list drugs separately) A4221

DME-Other DME · category DE017N

1 supplier13 claims13 services$18.27 avg. paid by Medicare

Infusion supplies for external drug infusion pump, per cassette or bag (list drugs separately) A4222

DME-Medical/Surgical Supplies · category DA000N

1 supplier12 claims12 services$35.17 avg. paid by Medicare

Injection, immune globulin/hyaluronidase, (hyqvia), 100 mg immuneglobulin J1575

Treatment-Injections and Infusions (nononcologic) · category RI008N

2 suppliers25 claims8,700 services$12.33 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.

EIRI INENAGA MS, OTR/L

Occupational Therapist (Pediatrics)