Marissa Machak, PA-C
NPI 1154860690 · Physician Assistant · New York, NY
Enrolled with Medicare as Order and Referring Only - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Machak, PA-C is a Physician Assistant provider in New York, NY (NPI 1154860690).
Provider details
- NPI number
- 1154860690
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 020605-1 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-02-16
- Last updated
- 2017-02-16
Frequently asked questions
- What is Marissa Machak's NPI number?
- Marissa Machak's National Provider Identifier (NPI) is 1154860690, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Machak's specialty?
- Marissa Machak is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marissa Machak located?
- Marissa Machak's practice location on file with NPPES is 622 W 168th St, New York, NY 10032-3720.
- What is Marissa Machak's phone number?
- The practice phone number listed in the NPPES registry for Marissa Machak is (212) 305-2500.
- Does Marissa Machak accept Medicare?
- Marissa Machak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Machak's NPI active?
- Yes — Marissa Machak's NPI (1154860690) is active in the NPPES registry as of the last update on 2017-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.