Rolf Knapp, D.O
NPI 1053355982 · Family Medicine Physician · Orange, CA
Enrolled with Medicare as Practitioner - Osteopathic Manipulative Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rolf Knapp, D.O is a Family Medicine Physician provider in Orange, CA (NPI 1053355982).
Provider details
- NPI number
- 1053355982
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O
- Sex
- Male
- Sole proprietor
- No
- License
- 20A5513 (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
20 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
342 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 | 182 | $139 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 66 | $99 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 39 | $140 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 38 | $21 |
| Administration of Influenza Virus VaccineG0008 | 17 | $35 |
Typical Medicare-allowed amounts for these services range $21–$140 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 119 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 279 | 76 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 226 | 40 |
| Atorvastatin Calcium | 214 | 73 |
| Losartan Potassium | 160 | 47 |
| Omeprazole | 142 | 45 |
| Amlodipine Besylate | 118 | 34 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-14
- Last updated
- 2025-11-21
- Certified
- 2025-11-21
Frequently asked questions
- What is Rolf Knapp's NPI number?
- Rolf Knapp's National Provider Identifier (NPI) is 1053355982, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rolf Knapp's specialty?
- Rolf Knapp is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Rolf Knapp located?
- Rolf Knapp's practice location on file with NPPES is 2540 N Santiago Blvd, Orange, CA 92867-1862.
- What is Rolf Knapp's phone number?
- The practice phone number listed in the NPPES registry for Rolf Knapp is (714) 921-1030.
- Does Rolf Knapp accept Medicare?
- Rolf Knapp is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rolf Knapp's NPI active?
- Yes — Rolf Knapp's NPI (1053355982) is active in the NPPES registry as of the last update on 2025-11-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.