Michael Arenstein, MD
NPI 1922091792 · Otolaryngology Physician · Gaithersburg, MD
Michael Arenstein, MD is a Otolaryngology Physician provider in Gaithersburg, MD (NPI 1922091792).
Provider details
- NPI number
- 1922091792
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- D0044852 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$21 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
- 2005-08-26
- Last updated
- 2017-03-24
Frequently asked questions
- What is Michael Arenstein's NPI number?
- Michael Arenstein's National Provider Identifier (NPI) is 1922091792, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Arenstein's specialty?
- Michael Arenstein is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Arenstein located?
- Michael Arenstein's practice location on file with NPPES is 818 W Diamond Ave, Gaithersburg, MD 20878-1417.
- What is Michael Arenstein's phone number?
- The practice phone number listed in the NPPES registry for Michael Arenstein is (301) 963-6334.
- Is Michael Arenstein's NPI active?
- Yes — Michael Arenstein's NPI (1922091792) is active in the NPPES registry as of the last update on 2017-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.