Daniel Reiffenberger, MD
NPI 1558328799 · Family Medicine Physician · Watertown, SD
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Reiffenberger, MD is a Family Medicine Physician provider in Watertown, SD (NPI 1558328799).
Provider details
- NPI number
- 1558328799
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 3805 (SD)
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
2,258 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) |
|---|---|---|
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 399 | $63 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 278 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 171 | $127 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 145 | $131 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 145 | $15 |
| Hemoglobin A1c Level83036 | 133 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 112 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 503 | 102 |
| Lisinopril | 407 | 97 |
| Simvastatin | 373 | 77 |
| Amlodipine Besylate | 251 | 61 |
| Metformin Hcl | 229 | 57 |
| Gabapentin | 212 | 41 |
| Glipizide | 205 | 36 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$412 across 25 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
- 2006-05-01
- Last updated
- 2022-05-17
- Certified
- 2022-05-17
Frequently asked questions
- What is Daniel Reiffenberger's NPI number?
- Daniel Reiffenberger's National Provider Identifier (NPI) is 1558328799, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Reiffenberger's specialty?
- Daniel Reiffenberger is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Reiffenberger located?
- Daniel Reiffenberger's practice location on file with NPPES is 511 14th Ave Ne, Watertown, SD 57201-6811.
- What is Daniel Reiffenberger's phone number?
- The practice phone number listed in the NPPES registry for Daniel Reiffenberger is (605) 886-8482.
- Does Daniel Reiffenberger accept Medicare?
- Daniel Reiffenberger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Reiffenberger's NPI active?
- Yes — Daniel Reiffenberger's NPI (1558328799) is active in the NPPES registry as of the last update on 2022-05-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.