David Tietjen, MD
NPI 1508838384 · Nephrology Physician · Huntsville, AL
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Tietjen, MD is a Nephrology Physician provider in Huntsville, AL (NPI 1508838384).
Provider details
- NPI number
- 1508838384
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 00019822 (AL)
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
440 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) |
|---|---|---|
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 274 | $323 |
| Dialysis Services, 2-3 Physician Visits Per Month (20 Years Or Older)90961 | 75 | $262 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 70 | $75 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 21 | $103 |
Typical Medicare-allowed amounts for these services range $75–$323 (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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sevelamer Carbonate | 61 | 12 |
| Lidocaine/Prilocainebrand: Lidocaine-Prilocaine | 30 | — |
| Nifedipinebrand: Nifedipine Er | 22 | — |
| Telmisartan | 18 | — |
| Ferric Citratebrand: Auryxia | 17 | — |
| Calcitriol | 12 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$519 across 19 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
- 2006-02-06
- Last updated
- 2012-03-19
Frequently asked questions
- What is David Tietjen's NPI number?
- David Tietjen's National Provider Identifier (NPI) is 1508838384, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Tietjen's specialty?
- David Tietjen is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is David Tietjen located?
- David Tietjen's practice location on file with NPPES is 2780 Bob Wallace Avenue, Huntsville, AL 35805-4104.
- What is David Tietjen's phone number?
- The practice phone number listed in the NPPES registry for David Tietjen is (256) 533-4626.
- Does David Tietjen accept Medicare?
- David Tietjen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Tietjen's NPI active?
- Yes — David Tietjen's NPI (1508838384) is active in the NPPES registry as of the last update on 2012-03-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.