David Ko, DO
NPI 1356720049 · Family Medicine Physician · Putnam, CT
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Ko, DO is a Family Medicine Physician provider in Putnam, CT (NPI 1356720049).
Provider details
- NPI number
- 1356720049
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- OP61443176 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
11 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
4 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 78 | 60 |
| Lisinopril | 59 | 38 |
| Amlodipine Besylate | 45 | 36 |
| Omeprazole | 43 | 30 |
| Levothyroxine Sodium | 37 | 29 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 32 | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$363 across 7 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
Additional practice locations (3)
- 1800a Frederick BlvdPortsmouth, VA 23707-4618Phone: (757) 337-6000
- 2690 Ne Kresky AveChehalis, WA 98532-2412Phone: (360) 330-9595
- 55 W Tietan StWalla Walla, WA 99362-4445Phone: (540) 825-6263Fax: (540) 825-4911
Registry dates
- Enumerated
- 2015-05-27
- Last updated
- 2026-04-21
- Certified
- 2026-04-21
Frequently asked questions
- What is David Ko's NPI number?
- David Ko's National Provider Identifier (NPI) is 1356720049, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Ko's specialty?
- David Ko is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is David Ko located?
- David Ko's practice location on file with NPPES is 330 Pomfret St, Putnam, CT 06260-3803.
- What is David Ko's phone number?
- The practice phone number listed in the NPPES registry for David Ko is (860) 928-2736.
- Does David Ko accept Medicare?
- David Ko is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Ko's NPI active?
- Yes — David Ko's NPI (1356720049) is active in the NPPES registry as of the last update on 2026-04-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.