Mikhail Grzhibek, M.D.
NPI 1629033709 · Internal Medicine Physician · East Patchogue, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mikhail Grzhibek, M.D. is a Internal Medicine Physician provider in East Patchogue, NY (NPI 1629033709).
Provider details
- NPI number
- 1629033709
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 239339 (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
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
3,315 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 | 1,298 | $138 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 356 | $114 |
| Urinalysis, Manual Test81002 | 235 | $3 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 209 | $109 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 160 | $16 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 106 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 349 | 98 |
| Amlodipine Besylate | 292 | 71 |
| Levothyroxine Sodium | 256 | 68 |
| Metoprolol Succinate | 230 | 54 |
| Alprazolam | 156 | 44 |
| Escitalopram Oxalate | 143 | 39 |
| Rosuvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$325 across 11 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
- 2006-04-20
- Last updated
- 2015-04-13
Frequently asked questions
- What is Mikhail Grzhibek's NPI number?
- Mikhail Grzhibek's National Provider Identifier (NPI) is 1629033709, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mikhail Grzhibek's specialty?
- Mikhail Grzhibek is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mikhail Grzhibek located?
- Mikhail Grzhibek's practice location on file with NPPES is 285 Sills Rd, East Patchogue, NY 11772-4869.
- What is Mikhail Grzhibek's phone number?
- The practice phone number listed in the NPPES registry for Mikhail Grzhibek is (631) 654-1800.
- Does Mikhail Grzhibek accept Medicare?
- Mikhail Grzhibek is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mikhail Grzhibek's NPI active?
- Yes — Mikhail Grzhibek's NPI (1629033709) is active in the NPPES registry as of the last update on 2015-04-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.