Michael Marsh, M.D.
NPI 1174547988 · Otolaryngology Physician · Scottsdale, AZ
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Marsh, M.D. is a Otolaryngology Physician provider in Scottsdale, AZ (NPI 1174547988).
Provider details
- NPI number
- 1174547988
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- C8388 (AR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,699 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) |
|---|---|---|
| Test for Allergy Using Allergenic Extract95004 | 1,400 | $3 |
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 1,110 | $12 |
| Test for Allergy Using Allergenic Extract Injected Into Skin95024 | 615 | $6 |
| Professional Service for Multiple Injections of Allergen95117 | 577 | $10 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 215 | $79 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 188 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone Propionate | 152 | 101 |
| Cefdinir | 90 | 85 |
| Ipratropium Bromide | 76 | 45 |
| Tramadol Hcl | 51 | 47 |
| Ondansetronbrand: Ondansetron Odt | 38 | 32 |
| Levofloxacin | 35 | 32 |
| Alprazolam | 30 | 30 |
| Hydrocodone/Acetaminophen |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$50 across 3 records (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
- 2006-07-26
- Last updated
- 2026-05-21
- Certified
- 2026-05-21
Frequently asked questions
- What is Michael Marsh's NPI number?
- Michael Marsh's National Provider Identifier (NPI) is 1174547988, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Marsh's specialty?
- Michael Marsh is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Marsh located?
- Michael Marsh's practice location on file with NPPES is 20745 N Scottsdale Rd Ste 105, Scottsdale, AZ 85255-6595.
- What is Michael Marsh's phone number?
- The practice phone number listed in the NPPES registry for Michael Marsh is (480) 534-4525.
- Does Michael Marsh accept Medicare?
- Michael Marsh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Marsh's NPI active?
- Yes — Michael Marsh's NPI (1174547988) is active in the NPPES registry as of the last update on 2026-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.