Karen Tan, MD
NPI 1427129071 · Otolaryngology Physician · Amsterdam, NY
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Tan, MD is a Otolaryngology Physician provider in Amsterdam, NY (NPI 1427129071).
Provider details
- NPI number
- 1427129071
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 183416 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,714 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 880 | $13 |
| Professional Service for Multiple Injections of Allergen95117 | 278 | $11 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 216 | $116 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 145 | $82 |
| Diagnostic Exam of Nasal Passages Using an Endoscope31231 | 68 | $161 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 48 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone Propionate | 1,210 | 464 |
| Montelukast Sodium | 697 | 167 |
| Omeprazole | 676 | 191 |
| Azelastine Hcl | 662 | 277 |
| Prednisone | 477 | 276 |
| Famotidine | 288 | 86 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 163 | 128 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,261 across 36 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
- 2006-11-13
- Last updated
- 2013-02-20
Frequently asked questions
- What is Karen Tan's NPI number?
- Karen Tan's National Provider Identifier (NPI) is 1427129071, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Tan's specialty?
- Karen Tan is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Tan located?
- Karen Tan's practice location on file with NPPES is 5010 State Highway 30, Amsterdam, NY 12010-7532.
- What is Karen Tan's phone number?
- The practice phone number listed in the NPPES registry for Karen Tan is (518) 842-8185.
- Does Karen Tan accept Medicare?
- Karen Tan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Tan's NPI active?
- Yes — Karen Tan's NPI (1427129071) is active in the NPPES registry as of the last update on 2013-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.