Physician Profile
Steven B. Machtinger, MD
Unclaimed ProfileAbout Dr. Machtinger
Based in San Francisco, CA, Steven B. Machtinger, MD is listed in the NPI registry under pediatric allergy & immunology. Steven graduated from University of Pittsburgh School of Medicine in 1977. Steven is also listed as specializing in pediatrics and allergy & immunology. Medicare claims data shows Steven provided 2,414 services to 304 patients. The services billed most often include test for allergy using allergenic extract, professional service for preparation and provision of 1 or more antigens, and professional service for multiple injections of allergen.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (415) 362-5443
- Email not available
Practice Locations
450 SUTTER ST RM 933
San Francisco, CA 94108
725 Welch Rd
Palo Alto, CA 94304
100 SOUTH ELLSWORTH AVENUE SUITE 707
San Mateo, CA 94401
Procedures Most Often Billed to Medicare
2,414 services · 304 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Test for allergy using allergenic extract | Treatment | 95004 |
903 | As often as other peers in Pediatric Allergy & Immunology |
| Professional service for preparation and provision of 1 or more antigens | Treatment | 95165 |
600 | Too few peers to compare |
| Professional service for multiple injections of allergen | Treatment | 95117 |
207 | As often as other peers in Pediatric Allergy & Immunology |
| Professional service for single injection of allergen | Treatment | 95115 |
206 | Too few peers to compare |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
200 | Too few peers to compare |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
64 | Too few peers to compare |
| Test to measure the level of nitric oxide gas | Treatment | 95012 |
60 | Too few peers to compare |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
85 | More often than most peers in Pediatric Allergy & Immunology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
59 | More often than most peers in Pediatric Allergy & Immunology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
30 | As often as other peers in Pediatric Allergy & Immunology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other pediatric allergy & immunology specialists in San Francisco 8
Same specialty, same city.
Trained at University of Pittsburgh School of Medicine 1
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1977 at University of Pittsburgh School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Test for allergy using allergenic extract 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Machtinger?
Dr. Machtinger is a pediatric allergy & immunology in San Francisco, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Dr. Machtinger's address?
Dr. Machtinger is listed at 450 Sutter St Rm 933, San Francisco, CA 94108. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Machtinger?
The number on file is (415) 362-5443. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Machtinger?
Dr. Machtinger's National Provider Identifier is 1093719437. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Machtinger train?
Dr. Machtinger attended University of Pittsburgh School of Medicine, graduating in 1977. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Machtinger have?
Dr. Machtinger has 49 years experience. Calculated from a graduation year of 1977, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Machtinger perform?
According to Medicare billing data, Dr. Machtinger provides treatments such as test for allergy using allergenic extract and professional service for preparation and provision of 1 or more antigens, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Machtinger's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Machtinger. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.