Douglas Hoverkamp, M.D.
NPI 1831305507 · Psychiatry Physician · Greenport, NY
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Hoverkamp, M.D. is a Psychiatry Physician provider in Greenport, NY (NPI 1831305507).
Provider details
- NPI number
- 1831305507
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 247356 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
791 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) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 408 | $57 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 301 | $72 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 30 | $107 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 19 | $191 |
| Psychiatric Services Complicated By Communication Factor90785 | 17 | $15 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Quetiapine Fumarate | 92 | 13 |
| Clonazepam | 67 | 11 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 54 | — |
| Gabapentin | 48 | 15 |
| Alprazolam | 45 | — |
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 43 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-16
- Last updated
- 2008-11-10
Frequently asked questions
- What is Douglas Hoverkamp's NPI number?
- Douglas Hoverkamp's National Provider Identifier (NPI) is 1831305507, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Hoverkamp's specialty?
- Douglas Hoverkamp is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Hoverkamp located?
- Douglas Hoverkamp's practice location on file with NPPES is 201 Manor Pl, Greenport, NY 11944-1222.
- What is Douglas Hoverkamp's phone number?
- The practice phone number listed in the NPPES registry for Douglas Hoverkamp is (631) 477-1000.
- Does Douglas Hoverkamp accept Medicare?
- Douglas Hoverkamp is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Hoverkamp's NPI active?
- Yes — Douglas Hoverkamp's NPI (1831305507) is active in the NPPES registry as of the last update on 2008-11-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.