Mark Hotchkiss, MD
NPI 1861488033 · Nephrology Physician · Orange, CT
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Hotchkiss, MD is a Nephrology Physician provider in Orange, CT (NPI 1861488033).
Provider details
- NPI number
- 1861488033
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 34345 (CT)
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
656 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 | 316 | $139 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 177 | $392 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 71 | $84 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 32 | $126 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 27 | $181 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Calcitriol | 173 | 58 |
| Amlodipine Besylate | 159 | 54 |
| Furosemide | 123 | 46 |
| Losartan Potassium | 118 | 43 |
| Lisinopril | 79 | 27 |
| Potassium Citratebrand: Potassium Citrate Er | 53 | 21 |
| Carvedilol | 52 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$5 across 2 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
- 2005-09-23
- Last updated
- 2025-04-11
- Certified
- 2025-04-11
Frequently asked questions
- What is Mark Hotchkiss's NPI number?
- Mark Hotchkiss's National Provider Identifier (NPI) is 1861488033, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Hotchkiss's specialty?
- Mark Hotchkiss is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Hotchkiss located?
- Mark Hotchkiss's practice location on file with NPPES is 235 Boston Post Rd Ste 202, Orange, CT 06477-3229.
- What is Mark Hotchkiss's phone number?
- The practice phone number listed in the NPPES registry for Mark Hotchkiss is (203) 799-1252.
- Does Mark Hotchkiss accept Medicare?
- Mark Hotchkiss is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Hotchkiss's NPI active?
- Yes — Mark Hotchkiss's NPI (1861488033) is active in the NPPES registry as of the last update on 2025-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.