Alan Markowitz, MD
NPI 1821016916 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Cleveland, OH
Enrolled with Medicare as Practitioner - Cardiac Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alan Markowitz, MD is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Cleveland, OH (NPI 1821016916).
Provider details
- NPI number
- 1821016916
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35-037273 (OH)
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
19 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.
$596 across 6 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
- 2006-07-17
- Last updated
- 2020-12-28
- Certified
- 2020-12-28
Frequently asked questions
- What is Alan Markowitz's NPI number?
- Alan Markowitz's National Provider Identifier (NPI) is 1821016916, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alan Markowitz's specialty?
- Alan Markowitz is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Alan Markowitz located?
- Alan Markowitz's practice location on file with NPPES is 11100 Euclid Ave, Cleveland, OH 44106-1716.
- What is Alan Markowitz's phone number?
- The practice phone number listed in the NPPES registry for Alan Markowitz is (216) 844-5770.
- Does Alan Markowitz accept Medicare?
- Alan Markowitz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alan Markowitz's NPI active?
- Yes — Alan Markowitz's NPI (1821016916) is active in the NPPES registry as of the last update on 2020-12-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.