Mark Koenig, D.O.
NPI 1831252964 · Family Medicine Physician · Miller Place, NY
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Koenig, D.O. is a Family Medicine Physician provider in Miller Place, NY (NPI 1831252964).
Provider details
- NPI number
- 1831252964
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 174687 (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
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
3,960 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 304 | $149 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 215 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 207 | $106 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 172 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 172 | $13 |
| Face-To-Face Behavioral Counseling for Obesity, 15 MinutesG0447 | 164 | $30 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 98 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 339 | 111 |
| Losartan Potassium | 208 | 60 |
| Amlodipine Besylate | 203 | 72 |
| Omeprazole | 192 | 64 |
| Metformin Hcl | 187 | 59 |
| Levothyroxine Sodium | 183 | 59 |
| Rosuvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,120 across 58 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
- 2006-12-19
- Last updated
- 2019-08-16
Frequently asked questions
- What is Mark Koenig's NPI number?
- Mark Koenig's National Provider Identifier (NPI) is 1831252964, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Koenig's specialty?
- Mark Koenig is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Koenig located?
- Mark Koenig's practice location on file with NPPES is 765 Route 25a Ste 6, Miller Place, NY 11764-2649.
- What is Mark Koenig's phone number?
- The practice phone number listed in the NPPES registry for Mark Koenig is (631) 320-3200.
- Does Mark Koenig accept Medicare?
- Mark Koenig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Koenig's NPI active?
- Yes — Mark Koenig's NPI (1831252964) 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.