Donald N Forthal, MD
NPI 1215017363 · Infectious Disease Physician · Orange, CA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donald N Forthal, MD is a Infectious Disease Physician provider in Orange, CA (NPI 1215017363).
Provider details
- NPI number
- 1215017363
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 000000G44065 (CA)
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
135 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 57 | $106 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 20 | $144 |
| 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 | 20 | $18 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 13 | $147 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 13 | $72 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 47 |
| Emtricitabine/Tenofov Alafenambrand: Descovy | 25 |
| Dolutegravir/Rilpivirinebrand: Juluca | 25 |
| Dolutegravir Sodiumbrand: Tivicay | 23 |
| Emtricitab/Rilpiviri/Tenof Alabrand: Odefsey | 20 |
| Abacavir/Dolutegravir/Lamivudibrand: Triumeq | 18 |
| Isavuconazonium Sulfatebrand: Cresemba | 15 |
| Valacyclovir Hclbrand: Valacyclovir | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-16
- Last updated
- 2008-01-15
Frequently asked questions
- What is Donald N Forthal's NPI number?
- Donald N Forthal's National Provider Identifier (NPI) is 1215017363, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald N Forthal's specialty?
- Donald N Forthal is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Donald N Forthal located?
- Donald N Forthal's practice location on file with NPPES is Uci Medical Center, Orange, CA 92868.
- What is Donald N Forthal's phone number?
- The practice phone number listed in the NPPES registry for Donald N Forthal is (714) 456-8978.
- Does Donald N Forthal accept Medicare?
- Donald N Forthal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donald N Forthal's NPI active?
- Yes — Donald N Forthal's NPI (1215017363) is active in the NPPES registry as of the last update on 2008-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.