John Digiovanni, D.O.
NPI 1538422308 · Family Medicine Physician · Frederick, MD
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Digiovanni, D.O. is a Family Medicine Physician provider in Frederick, MD (NPI 1538422308).
Provider details
- NPI number
- 1538422308
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- DOS1559 (HI)
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
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,128 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 | 612 | $92 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 319 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 303 | $75 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 295 | $128 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 123 | $19 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 70 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 422 | 125 |
| Rosuvastatin Calcium | 252 | 79 |
| Lisinopril | 219 | 62 |
| Amlodipine Besylate | 215 | 61 |
| Levothyroxine Sodium | 165 | 39 |
| Losartan Potassium | 118 | 39 |
| Metoprolol Succinate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$600 across 31 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
Additional practice locations (3)
- 4076 Neely Rd.Bldg 4076, Room 3c-40Ft Wainwright, AK 99703-7440Phone: (907) 384-8150
- 786 D StreetJber, AK 99505Phone: (907) 384-8153
- 1 Jarrett White RdTripler Army Medical CenterTripler Amc, HI 96859-5001Phone: (808) 433-3300
Registry dates
- Enumerated
- 2012-06-18
- Last updated
- 2022-05-20
- Certified
- 2022-05-20
Frequently asked questions
- What is John Digiovanni's NPI number?
- John Digiovanni's National Provider Identifier (NPI) is 1538422308, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Digiovanni's specialty?
- John Digiovanni is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Digiovanni located?
- John Digiovanni's practice location on file with NPPES is 56 Thomas Johnson Dr, Frederick, MD 21702-4599.
- What is John Digiovanni's phone number?
- The practice phone number listed in the NPPES registry for John Digiovanni is (301) 694-3111.
- Does John Digiovanni accept Medicare?
- John Digiovanni is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Digiovanni's NPI active?
- Yes — John Digiovanni's NPI (1538422308) is active in the NPPES registry as of the last update on 2022-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.