Tatjana Ratzenberger, O.D.
NPI 1679729685 · Optometrist · Troy, MI
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tatjana Ratzenberger, O.D. is a Optometrist provider in Troy, MI (NPI 1679729685).
Provider details
- NPI number
- 1679729685
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 4901004456 (MI)
Specialties & taxonomies
Eye and Vision Services Providers
Eye and Vision Services Providers
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 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
254 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 68 | $91 |
| Established Patient Complete Exam of Visual System92014 | 67 | $124 |
| Imaging of Optic Nerve92133 | 33 | $35 |
| Exam of Visual Field With Extended Testing92083 | 24 | $60 |
| Imaging of Retina92134 | 23 | $40 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 15 | $128 |
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 |
|---|---|---|
| Cyclosporinebrand: Restasis | 32 | 17 |
| Bimatoprostbrand: Lumigan | 24 | — |
| Doxycycline Hyclate | 23 | 12 |
| Latanoprost | 17 | — |
| Erythromycin Basebrand: Erythromycin | 12 | — |
| Loteprednol Etabonate | 11 | — |
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.
$312 across 15 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
- 2008-08-10
- Last updated
- 2014-03-11
Frequently asked questions
- What is Tatjana Ratzenberger's NPI number?
- Tatjana Ratzenberger's National Provider Identifier (NPI) is 1679729685, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tatjana Ratzenberger's specialty?
- Tatjana Ratzenberger is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Tatjana Ratzenberger located?
- Tatjana Ratzenberger's practice location on file with NPPES is 735 John R Rd, Troy, MI 48083-5856.
- What is Tatjana Ratzenberger's phone number?
- The practice phone number listed in the NPPES registry for Tatjana Ratzenberger is (248) 544-3290.
- Does Tatjana Ratzenberger accept Medicare?
- Tatjana Ratzenberger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tatjana Ratzenberger's NPI active?
- Yes — Tatjana Ratzenberger's NPI (1679729685) is active in the NPPES registry as of the last update on 2014-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.