Doctor profile · Federal record
Dr. Robert Holzhauer, MD
Allergy & Immunology Physician (CMS: Allergy/Immunology) · San Luis Obispo, CA
- NPI 1710955976
- Accepts Medicare
- MIPS 56.2 / 100 · 2023
- 54 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1551 Bishop St, Suite 520
San Luis Obispo, CA 934014635
(805) 543-2744
fax (805) 543-0539 - Mailing address
-
Po Box 603725
Charlotte, NC 282603725
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- October 17, 2023
- Year of graduation
- 1972 — 54 yrs since
- Specialty taxonomy
- 207K00000X — NUCC code
- State license (1)
- California #C37219
- Medicaid
- CA #1710955976
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1710955976. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
11,218
Distinct HCPCS
10
Medicare allowed
$227,287
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
95004 |
Test for allergy using allergenic extract | 3,274 | 53 | $4 | |
95165 |
Professional service for preparation and provision of 1 or more antigens | 2,915 | 103 | $16 | |
J2357 |
Injection, omalizumab, 5 mg | 2,507 | 13 | $38 | |
95024 |
Test for allergy using allergenic extract injected into skin | 813 | 41 | $9 | |
95117 |
Professional service for multiple injections of allergen | 684 | 179 | $13 | |
96372 |
Injection of drug or substance under skin or into muscle | 196 | 31 | $15 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 196 | 134 | $131 | |
96160 |
Administration and interpretation of patient-focused health risk assessment | 142 | 110 | $3 | |
95115 |
Professional service for single injection of allergen | 111 | 33 | $11 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 98 | 85 | $93 |
In context: peer comparison
Among 2 peers in San Luis Obispo Allergy & Immunology Physician, average services per provider: 726. This provider delivers 15× the peer median.Open Payments
Industry payments received
All-time total
$759
Transactions
39
Manufacturers
12
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| GlaxoSmithKline, LLC. | 18 | $227.31 | |
| Genzyme Corporation | 4 | $79.71 | |
| Takeda Pharmaceuticals U.S.A., INC. | 3 | $78.52 | |
| Csl Behring | 3 | $72.50 | |
| AstraZeneca Pharmaceuticals Lp | 3 | $66.12 | |
| Genentech USA, INC. | 2 | $58.82 | |
| Pharming Healthcare, INC. | 1 | $46.19 | |
| Blueprint Medicines Corporation | 1 | $34.90 | |
| Lilly USA, LLC | 1 | $29.10 | |
| Amgen INC. | 1 | $22.63 | |
| Grifols USA, LLC | 1 | $22.00 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 1 | $21.03 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
417
Patients
99
Total drug cost
$513,737
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Azelastine Hcl | Generic | 67 | 26 | $2,371 |
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 59 | 17 | $57,460 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 29 | 14 | $1,172 |
| Nucala (Mepolizumab) | Brand | 29 | 0 | $126,797 |
| Ipratropium Bromide | Generic | 25 | 16 | $990 |
| Symbicort (Budesonide/Formoterol Fumarate) | Brand | 25 | 12 | $13,693 |
| Dulera (Mometasone/Formoterol) | Brand | 24 | 0 | $10,423 |
| Dupixent Pen (Dupilumab) | Brand | 23 | 0 | $87,392 |
| Fluticasone Propionate | Generic | 23 | 0 | $543 |
| Hizentra (Immun Glob G(Igg)/Pro/Iga 0-50) | Brand | 22 | 0 | $66,063 |
Frequently asked questions
What is Dr. Robert Holzhauer's medical specialty?
Dr. Robert Holzhauer practices Allergy & Immunology Physician in San Luis Obispo, CA.
Where does Dr. Robert Holzhauer practice?
Dr. Robert Holzhauer practices at 1551 Bishop St, San Luis Obispo, CA 934014635. Office phone: 8055432744.
What is Dr. Robert Holzhauer's NPI?
Dr. Robert Holzhauer's National Provider Identifier (NPI) is 1710955976, issued by NPPES.
Does Dr. Robert Holzhauer accept Medicare assignment?
Yes. Dr. Robert Holzhauer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Robert Holzhauer commonly perform?
Top Medicare-reported procedures in 2023: Test for allergy using allergenic extract (HCPCS 95004); Professional service for preparation and provision of 1 or more antigens (HCPCS 95165); Injection, omalizumab, 5 mg (HCPCS J2357). Source: CMS Medicare Physician & Other Practitioners file.