Colleen Klos
NPI 1003567603 · Internal Medicine Physician · Williamsville, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Colleen Klos is a Internal Medicine Physician provider in Williamsville, NY (NPI 1003567603).
Provider details
- NPI number
- 1003567603
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- Yes
- License
- 027835-01 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
4 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
284 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 117 | $139 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 116 | $95 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 30 | $63 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 21 | $92 |
Typical Medicare-allowed amounts for these services range $63–$139 (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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$48 across 2 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
- 2022-01-14
- Last updated
- 2022-01-14
- Certified
- 2022-01-14
Frequently asked questions
- What is Colleen Klos's NPI number?
- Colleen Klos's National Provider Identifier (NPI) is 1003567603, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colleen Klos's specialty?
- Colleen Klos is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Colleen Klos located?
- Colleen Klos's practice location on file with NPPES is 1540 Maple Rd, Williamsville, NY 14221-3647.
- What is Colleen Klos's phone number?
- The practice phone number listed in the NPPES registry for Colleen Klos is (716) 568-3514.
- Does Colleen Klos accept Medicare?
- Colleen Klos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Colleen Klos's NPI active?
- Yes — Colleen Klos's NPI (1003567603) is active in the NPPES registry as of the last update on 2022-01-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.