Darryl Guistwite, DO
NPI 1609816586 · Family Medicine Physician · Carlisle, PA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Darryl Guistwite, DO is a Family Medicine Physician provider in Carlisle, PA (NPI 1609816586).
Provider details
- NPI number
- 1609816586
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- OS010715L (PA)
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
5,791 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, 20 Minutes Or More99308 | 2,322 | $72 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 1,877 | $105 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, at Least 10 Minutes99307 | 1,235 | $39 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 138 | $178 |
| Nursing Facility Discharge Management, More Than 30 Minutes99316 | 111 | $128 |
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 239 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 2,048 | 128 |
| Furosemide | 1,637 | 110 |
| Levothyroxine Sodium | 1,345 | 80 |
| Gabapentin | 1,318 | 73 |
| Amlodipine Besylate | 1,182 | 67 |
| Lisinopril | 1,153 | 66 |
| Pantoprazole Sodium | 1,096 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$43 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
- 2006-06-07
- Last updated
- 2007-09-23
Frequently asked questions
- What is Darryl Guistwite's NPI number?
- Darryl Guistwite's National Provider Identifier (NPI) is 1609816586, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darryl Guistwite's specialty?
- Darryl Guistwite is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Darryl Guistwite located?
- Darryl Guistwite's practice location on file with NPPES is 56 Ashton St, Carlisle, PA 17015-6914.
- What is Darryl Guistwite's phone number?
- The practice phone number listed in the NPPES registry for Darryl Guistwite is (717) 609-2052.
- Does Darryl Guistwite accept Medicare?
- Darryl Guistwite is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Darryl Guistwite's NPI active?
- Yes — Darryl Guistwite's NPI (1609816586) is active in the NPPES registry as of the last update on 2007-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.