Nancy Tengelsen, PA-C
NPI 1558607531 · Physician Assistant · East Patchogue, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nancy Tengelsen, PA-C is a Physician Assistant provider in East Patchogue, NY (NPI 1558607531).
Provider details
- NPI number
- 1558607531
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 016225 (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 tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
87 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 37 | $106 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 35 | $88 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 15 | $124 |
Typical Medicare-allowed amounts for these services range $88–$124 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
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 |
|---|---|---|
| Meloxicam | 480 | 195 |
| Diclofenac Sodium | 49 | 23 |
| Ibuprofen | 47 | 25 |
| Celecoxib | 37 | 12 |
| Tramadol Hcl | 31 | 24 |
| Methylprednisolone | 26 | 25 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 26 | 24 |
| Amoxicillin | 22 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-12-20
- Last updated
- 2019-08-16
Frequently asked questions
- What is Nancy Tengelsen's NPI number?
- Nancy Tengelsen's National Provider Identifier (NPI) is 1558607531, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Tengelsen's specialty?
- Nancy Tengelsen is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nancy Tengelsen located?
- Nancy Tengelsen's practice location on file with NPPES is 285 Sills Rd Bldg 18, East Patchogue, NY 11772-4808.
- What is Nancy Tengelsen's phone number?
- The practice phone number listed in the NPPES registry for Nancy Tengelsen is (631) 475-1224.
- Does Nancy Tengelsen accept Medicare?
- Nancy Tengelsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nancy Tengelsen's NPI active?
- Yes — Nancy Tengelsen's NPI (1558607531) is active in the NPPES registry as of the last update on 2019-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.