npidexNPI registry + Medicare data

MARK GRIJNSZTEIN, M.D.

Allergy & Immunology Physician · ELK GROVE, CA

Individual Active NPI 1164580866

Medicare payment data Part B · 2024

YearBeneficiariesServicesSubmittedAllowedPaid
20241434,534$184,631$48,130$35,249
20231263,404$137,893$40,987$29,242
20221572,928$153,945$45,784$33,245

Top procedures (2024)

HCPCSDescriptionServicesAvg allowedAvg paid
95004Test for allergy using allergenic extract1,494$4$3
95165Professional service for preparation and provision of 1 or more antigens550$16$12
95117Professional service for multiple injections of allergen240$14$10
99213Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more85$94$69
99203New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more38$118$89
99204New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more37$172$117
99214Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more34$128$90
94010Test to measure expiratory airflow and volume24$30$22

Taxonomy & licensure

SpecialtyCodePrimaryLicenseState
Allergy & Immunology Physician207K00000X✓A96813CA

Medicare eligibility

Part B
Yes
DME
Yes
Home health
Yes
Power mobility
Yes
Hospice
Yes

Other Allergy & Immunology Physician providers in California

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Source: NPPES (public domain) and CMS Medicare Physician & Other Practitioners data. Not affiliated with CMS, NPPES, or any government agency.