Hi Sim, M.D.
NPI 1659320505 · Internal Medicine Physician · Havre De Grace, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hi Sim, M.D. is a Internal Medicine Physician provider in Havre De Grace, MD (NPI 1659320505).
Provider details
- NPI number
- 1659320505
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D0046412 (MD)
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 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
5,571 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, at Least 10 Minutes99307 | 1,591 | $40 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,174 | $101 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 440 | $74 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 319 | $19 |
| Telephone Medical Discussion With Physician, 5-10 Minutes99441 | 304 | $46 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 155 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 487 | 143 |
| Amlodipine Besylate | 414 | 127 |
| Levothyroxine Sodium | 355 | 97 |
| Furosemide | 312 | 90 |
| Lisinopril | 300 | 95 |
| Pantoprazole Sodium | 220 | 79 |
| Alprazolam | 212 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,489 across 76 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
- 2006-05-09
- Last updated
- 2010-02-02
Frequently asked questions
- What is Hi Sim's NPI number?
- Hi Sim's National Provider Identifier (NPI) is 1659320505, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hi Sim's specialty?
- Hi Sim is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Hi Sim located?
- Hi Sim's practice location on file with NPPES is 251 Lewis Lane, Havre De Grace, MD 21078-3753.
- What is Hi Sim's phone number?
- The practice phone number listed in the NPPES registry for Hi Sim is (410) 939-4477.
- Does Hi Sim accept Medicare?
- Hi Sim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hi Sim's NPI active?
- Yes — Hi Sim's NPI (1659320505) is active in the NPPES registry as of the last update on 2010-02-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.