ROBERT J HOLZHAUER MD
NPI 1710955976
Allergy & Immunology in San Luis Obispo, CA

Q: What is Robert Holzhauer's NPI number?

The NPI number for Robert Holzhauer is 1710955976. It was assigned to this individual provider in the NPPES registry on March 14, 2006.

Q: What is Robert Holzhauer'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 Robert Holzhauer was last updated on October 17, 2023. 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 March 14, 2006PECOS EnrolledAccepts Medicare Assignment

56.18/100

CMS Quality Rating

1551 BISHOP ST, SUITE 520, SAN LUIS OBISPO, CA 93401(805) 543-2744(805) 543-0539 Get Directions Write a Review

NPPES record last updated: October 17, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Oct 17, 2023, Apr 27, 2022, Mar 10, 2020 and 1 more (4 updates tracked since 2015).

On this page

About Robert J Holzhauer Md NPPES

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

ROBERT J HOLZHAUER MD (NPI 1710955976) is an individual allergy & immunology provider in San Luis Obispo, California, licensed in California (C37219) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of Tulane University School Of Medicine (1972).

NPPES Registry Identity

NPI1710955976

Entity TypeIndividualMale

Primary Taxonomy207K00000X

Provider Legal NameROBERT J HOLZHAUERCredential: MD

Location Address1551 BISHOP ST, SUITE 520San Luis Obispo, CA 93401-4635

Mailing AddressPo Box 603725Charlotte, NC 28260-3725 · (828) 575-2625 · Fax (828) 350-2174

Phone(805) 543-2744

Fax(805) 543-0539

Sole ProprietorNo

Medical School CMSTulane University School Of MedicineGraduated 1972

Enumeration DateMarch 14, 2006

Last NPPES UpdateOctober 17, 20234 updates tracked since enumeration

NPPES CertifiedOctober 17, 2023

✔ NPI 1710955976 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

License✔ Licensed in CA · C37219

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.

1551 BISHOP ST, San Luis Obispo, CA 93401

Open in Google Maps ↗

Other Identifiers 2

Medicaid1710955976CA

OtherFD329ZCA · Medicare Ptan

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

Robert J Holzhauer 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 ID1355382169

PECOS Enrollment IDI20110719000770

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 17

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.

Injection, omalizumab, 5 mg J2357

Omalizumab is a medication given via injection. It's used to treat severe allergic asthma and chronic hives when other treatments fail. The 5mg dose is determined by your doctor based on your weight and condition.

3,272 services16 patients

Test for allergy using allergenic extract 95004

An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.

2,867 services52 patients

Professional service for preparation and provision of 1 or more antigens 95165

This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.

2,840 services99 patients

Professional service for multiple injections of allergen 95117

The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.

925 services194 patients

Test for allergy using allergenic extract injected into skin 95024

An allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.

826 services42 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

215 services36 patients

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.

206 services146 patients

Professional service for single injection of allergen 95115

A single allergen injection is a procedure where a small amount of a specific allergen is injected into your body. This is done to test your body's reaction to the allergen or to help your immune system become less sensitive to it, reducing allergic symptoms.

195 services36 patients

Test to measure the level of nitric oxide gas 95012

A test to measure the level of nitric oxide gas helps assess inflammation in the lungs, often linked with asthma. You'll breathe into a device, and it'll provide a reading of nitric oxide levels. This helps monitor and manage respiratory conditions.

100 services81 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.

100 services87 patients

Test to measure expiratory airflow and volume 94010

This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.

78 services71 patients

Administration and interpretation of patient-focused health risk assessment 96160

This procedure involves a detailed evaluation of your health to identify potential risks. It includes analyzing your medical history, lifestyle habits, and family health history. The results are interpreted to provide a personalized plan to improve your health and prevent future issues.

77 services65 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.

42 services42 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.

25 services25 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.

21 services17 patients

Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211

This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.

14 services14 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

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.

56.18/100

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

Individually scored

Quality

48.35

Improvement Activities

Cost

22.81

Reported Quality Measures

Controlling High Blood Pressure

52%21 patients3/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

91%646 patients4/55-star benchmark: 100%

Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented

17%613 patients2/55-star benchmark: 61%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients screened: 96% · 142 patients

96%142 patients

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 0% · 204 patients

Patients totalRate: 2% · 204 patients

2%204 patients4/55-star benchmark: 100%

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.

Referred Medical Equipment & Supplies CMS DME claims 8

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

2 suppliers27 claims55 services$18.25 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

1 supplier11 claims11 services$5.66 avg. paid by Medicare

Ambulatory infusion pump, mechanical, reusable, for infusion 8 hours or greater E0779

DME-Other DME · category DE000N

1 supplier12 claims12 services$13.46 avg. paid by Medicare

Injection, immune globulin (cuvitru), 100 mg J1555

Treatment-Injections and Infusions (nononcologic) · category RI008N

1 supplier13 claims6,240 services$11.71 avg. paid by Medicare

Injection, immune globulin (hizentra), 100 mg J1559

Treatment-Injections and Infusions (nononcologic) · category RI008N

1 supplier14 claims3,900 services$9.67 avg. paid by Medicare

Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613

DME-Drugs Administered Through DME · category DG006N

1 supplier14 claims3,525 services$0.03 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Leave this field empty

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.

CAROLYN ANN SMITH P.A.

Physician Assistant (Medical)

1551 BISHOP ST, 220
SAN LUIS OBISPO, CA 93401

San Luis Obispo County (805) 541-0668

COMMUNITY HEALTH CENTERS OF THE CENTRAL COAST INC

Clinic/Center (Federally Qualified Health Center (FQHC))

1551 BISHOP ST, SUITE 240
SAN LUIS OBISPO, CA 93401

San Luis Obispo County (805) 549-0402

MS. MARY B GARRETT NP

Nurse Practitioner (Psychiatric/Mental Health)

1551 BISHOP ST, SUITE A-150
SAN LUIS OBISPO, CA 93401

San Luis Obispo County (805) 541-6000

DR. BRANDON JAMES SLADE DPM

Podiatrist (Foot & Ankle Surgery)

1551 BISHOP ST
SAN LUIS OBISPO, CA 93401

San Luis Obispo County (805) 543-7788

JOHN BARRY SIEBENLIST M.D.

Dermatology (Procedural Dermatology)

1551 BISHOP ST, SUITE 220
SAN LUIS OBISPO, CA 93401

San Luis Obispo County (805) 541-0668

ELENA G ASELTINE

Registered Nurse (Women's Health Care, Ambulatory)

1551 BISHOP ST, SUITE 240
SAN LUIS OBISPO, CA 93401

San Luis Obispo County (805) 549-0402

RODOLFO CASTILLO-RUIZ MD

Family Medicine

1551 BISHOP ST, 160
SAN LUIS OBISPO, CA 93401

San Luis Obispo County (805) 269-1500

CHARLES B. FISHMAN M.D.

Dermatology

1551 BISHOP ST, SUITE 410
SAN LUIS OBISPO, CA 93401

San Luis Obispo County (805) 541-4180

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 Robert Holzhauer's NPI number?

The NPI number for Robert Holzhauer is 1710955976. It was assigned to this individual provider in the NPPES registry on March 14, 2006.

Where is Robert Holzhauer located?

Robert Holzhauer practices at 1551 Bishop St Suite 520, San Luis Obispo, CA 93401. The listed phone number is (805) 543-2744.

What is Robert Holzhauer's specialty?

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

Is Robert Holzhauer enrolled in Medicare?

Yes. Robert Holzhauer 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.

When was this NPI record last updated?

The NPPES record for Robert Holzhauer was last updated on October 17, 2023. 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.