Harry Hamlyn, MD
NPI 1801997739 · Psychiatry Physician · Rapid City, SD
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Harry Hamlyn, MD is a Psychiatry Physician provider in Rapid City, SD (NPI 1801997739).
Provider details
- NPI number
- 1801997739
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4000 (SD)
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
758 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 401 | $61 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 260 | $110 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 30 | $89 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 30 | $107 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 24 | $161 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 80 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 569 | 86 |
| Quetiapine Fumarate | 361 | 43 |
| Clonazepam | 346 | 48 |
| Lamotrigine | 329 | 46 |
| Alprazolam | 291 | 33 |
| Aripiprazole | 265 | 45 |
| Olanzapine | 259 | 28 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$725 across 14 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
- 2006-09-25
- Last updated
- 2013-01-03
Frequently asked questions
- What is Harry Hamlyn's NPI number?
- Harry Hamlyn's National Provider Identifier (NPI) is 1801997739, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harry Hamlyn's specialty?
- Harry Hamlyn is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Harry Hamlyn located?
- Harry Hamlyn's practice location on file with NPPES is 915 Mt. View Road, Rapid City, SD 57702.
- What is Harry Hamlyn's phone number?
- The practice phone number listed in the NPPES registry for Harry Hamlyn is (605) 719-7200.
- Does Harry Hamlyn accept Medicare?
- Harry Hamlyn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Harry Hamlyn's NPI active?
- Yes — Harry Hamlyn's NPI (1801997739) is active in the NPPES registry as of the last update on 2013-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.