Daniel Sak, DO
NPI 1568425494 · Pulmonary Disease Physician · Findlay, OH
Enrolled with Medicare as Practitioner - Sleep Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Sak, DO is a Pulmonary Disease Physician provider in Findlay, OH (NPI 1568425494).
Provider details
- NPI number
- 1568425494
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- 34011122 (OH)
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
20 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
400 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 170 | $62 |
| Sleep Study in Sleep Lab (6 Years Or Older)95810 | 73 | $111 |
| Sleep Study in Sleep Lab With Continuous Airway Pressure (6 Years Or Older)95811 | 40 | $116 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 36 | $76 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 33 | $92 |
| Sleep Study Including Heart Rate, Breathing, Airflow, and Effort |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 56 | 14 |
| Methylphenidate Hcl | 25 | — |
| Eszopiclone | 21 | — |
| Clonazepam | 19 | — |
| Modafinil | 19 | — |
| Alprazolam | 18 | — |
| Methylphenidate Hclbrand: Methylphenidate Er |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$169 across 5 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
- 2006-04-11
- Last updated
- 2017-02-02
Frequently asked questions
- What is Daniel Sak's NPI number?
- Daniel Sak's National Provider Identifier (NPI) is 1568425494, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Sak's specialty?
- Daniel Sak is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Sak located?
- Daniel Sak's practice location on file with NPPES is 1909 S Main St, Findlay, OH 45840-1208.
- What is Daniel Sak's phone number?
- The practice phone number listed in the NPPES registry for Daniel Sak is (419) 427-2604.
- Does Daniel Sak accept Medicare?
- Daniel Sak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Sak's NPI active?
- Yes — Daniel Sak's NPI (1568425494) is active in the NPPES registry as of the last update on 2017-02-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.