Patrick Hartendorp, MD
NPI 1497045710 · Colon & Rectal Surgery Physician · Garden City, NY
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Patrick Hartendorp, MD is a Colon & Rectal Surgery Physician provider in Garden City, NY (NPI 1497045710).
Provider details
- NPI number
- 1497045710
- Entity type
- Individual
- Primary specialty
- Colon & Rectal Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 283103 (NY)
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 tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
530 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 164 | $103 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 102 | $56 |
| Diagnostic Exam of Anus Using an Endoscope46600 | 77 | $139 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 73 | $191 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 36 | $146 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocortisone | 24 | 22 |
| Hydrocortisonebrand: Procto-Med Hc | 12 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (2)
- 173 Mineola Blvd Ste 401Mineola, NY 11501-2555Phone: (516) 663-1145Fax: (516) 663-1874
- 6550 Fannin StSuite 2307Houston, TX 77030-2717Phone: (713) 790-9250Fax: (713) 790-9251
Registry dates
- Enumerated
- 2011-04-08
- Last updated
- 2021-12-20
- Certified
- 2021-12-20
Frequently asked questions
- What is Patrick Hartendorp's NPI number?
- Patrick Hartendorp's National Provider Identifier (NPI) is 1497045710, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Patrick Hartendorp's specialty?
- Patrick Hartendorp is listed in the NPPES registry with a primary specialty of Colon & Rectal Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Patrick Hartendorp located?
- Patrick Hartendorp's practice location on file with NPPES is 1300 Franklin Ave Ste Ml6, Garden City, NY 11530-1760.
- What is Patrick Hartendorp's phone number?
- The practice phone number listed in the NPPES registry for Patrick Hartendorp is (516) 535-1900.
- Does Patrick Hartendorp accept Medicare?
- Patrick Hartendorp is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Patrick Hartendorp's NPI active?
- Yes — Patrick Hartendorp's NPI (1497045710) is active in the NPPES registry as of the last update on 2021-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.