JOHN NIKOLHAUS SMITH MD
NPI 1639523194
Internal Medicine - Cardiovascular Disease in Westbrook, ME
About John Nikolhaus Smith Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN NIKOLHAUS SMITH MD (NPI 1639523194) is an individual cardiovascular disease provider in Westbrook, Maine, licensed in Maine (MD27190) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS, is affiliated with Maine Medical Center, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
John Nikolhaus Smith Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show John Smith reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, ME 04103
- Reassigned Medicare billing, Maine enrollment
- 3,140 clinicians in this Medicare group
Lewiston, ME 04240
- Reassigned Medicare billing, Maine enrollment
- Medicare enrollment name: St Marys Regional Medical Center
- 381 clinicians in this Medicare group
North Conway, NH 03860
- Reassigned Medicare billing, New Hampshire enrollment
- 172 clinicians in this Medicare group
Belcamp, MD 21017
- Reassigned Medicare billing, Maryland enrollment
- 4,483 clinicians in this Medicare group
Baltimore, MD 21239
- Reassigned Medicare billing, District of Columbia enrollment
- 3,530 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 12
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Maine Medical Center
Acute Care Hospitals · Portland, MEMaine General Medical Center
Acute Care Hospitals · Augusta, MEStephens Memorial Hospital
Critical Access Hospitals · Norway, MEMemorial Hospital, The
Critical Access Hospitals · North Conway, NHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04092 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Smith's NPI number?
The NPI number for John Smith is 1639523194. It was assigned to this individual provider in the NPPES registry on April 20, 2016.
Where is John Smith located?
John Smith practices at 1 Riverfront Plz, Westbrook, ME 04092. The listed phone number is (207) 885-9905.
What is John Smith's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is John Smith enrolled in Medicare?
Yes. John Smith is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for John Smith's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Smith reassigns Medicare benefits to 5 organizations: Mainehealth (Portland, ME), St. Mary's Regional Medical Center (Lewiston, ME), The Memorial Hospital (North Conway, NH), Johns Hopkins University (Belcamp, MD) and Medstar Medical Group II LLC (Baltimore, MD). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Smith's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Smith accept?
Health plans from Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and Taro Health list John Smith as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is John Smith affiliated with any hospitals?
According to CMS data, John Smith is affiliated with Maine Medical Center, Maine General Medical Center, Stephens Memorial Hospital and Memorial Hospital, The.
When was this NPI record last updated?
The NPPES record for John Smith was last updated on January 30, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# John Nikolhaus Smith, MD · NPI 1639523194
Cardiovascular Disease physician in Westbrook, Maine. Individual provider, active in the CMS NPPES registry since April 20, 2016.
## Identity
- **NPI:** 1639523194 (Entity type: Individual)
- **Enumerated:** April 20, 2016
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** MD27190 (Maine)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1 RIVERFRONT PLZ, Westbrook, ME 04092-2986
- **Phone:** (207) 885-9905
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Mainehealth (NPI 1649577768, Portland, ME); St. Mary's Regional Medical Center (NPI 1447226584, Lewiston, ME); The Memorial Hospital (NPI 1366421141, North Conway, NH); Johns Hopkins University (NPI 1376342774, Belcamp, MD); Medstar Medical Group II LLC (NPI 1184046187, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Boston University School Of Medicine, class of 2016
## Record status
- **NPPES last updated:** January 30, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1639523194) · Data from the CMS NPPES public registry.