Matthew Grantz, M.D.
NPI 1134373665 · Vascular Neurology Physician · Salt Lake City, UT
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Grantz, M.D. is a Vascular Neurology Physician provider in Salt Lake City, UT (NPI 1134373665).
Provider details
- NPI number
- 1134373665
- Entity type
- Individual
- Primary specialty
- Vascular Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
545 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 245 | $112 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 126 | $164 |
| Critical Care, First 30-74 Minutes99291 | 100 | $201 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 74 | $75 |
Typical Medicare-allowed amounts for these services range $75–$201 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$84 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-11-11
- Last updated
- 2012-12-12
Frequently asked questions
- What is Matthew Grantz's NPI number?
- Matthew Grantz's National Provider Identifier (NPI) is 1134373665, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Grantz's specialty?
- Matthew Grantz is listed in the NPPES registry with a primary specialty of Vascular Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Grantz located?
- Matthew Grantz's practice location on file with NPPES is 30 N 1900 E # 3r210, Salt Lake City, UT 84132-0002.
- What is Matthew Grantz's phone number?
- The practice phone number listed in the NPPES registry for Matthew Grantz is (801) 585-6387.
- Does Matthew Grantz accept Medicare?
- Matthew Grantz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Grantz's NPI active?
- Yes — Matthew Grantz's NPI (1134373665) is active in the NPPES registry as of the last update on 2012-12-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.