Mary Klein, M.D.
NPI 1518966589 · Hematology & Oncology Physician · Valparaiso, IN
Mary Klein, M.D. is a Hematology & Oncology Physician provider in Valparaiso, IN (NPI 1518966589).
Provider details
- NPI number
- 1518966589
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 01034294 (IN)
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
495 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 204 | $119 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 143 | $85 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 99 | $73 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 34 | $121 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 15 | $13 |
Typical Medicare-allowed amounts for these services range $13–$121 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 108 | 22 |
| Anastrozole | 103 | 30 |
| Rivaroxabanbrand: Xarelto | 80 | 17 |
| Warfarin Sodium | 59 | 16 |
| Potassium Chloride | 43 | 13 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 32 | 11 |
| Letrozole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$34 across 2 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
- 2005-07-20
- Last updated
- 2020-09-11
- Certified
- 2020-09-11
Frequently asked questions
- What is Mary Klein's NPI number?
- Mary Klein's National Provider Identifier (NPI) is 1518966589, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Klein's specialty?
- Mary Klein is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Klein located?
- Mary Klein's practice location on file with NPPES is 85 E US Highway 6 Ste 200, Valparaiso, IN 46383.
- What is Mary Klein's phone number?
- The practice phone number listed in the NPPES registry for Mary Klein is (219) 983-6260.
- Is Mary Klein's NPI active?
- Yes — Mary Klein's NPI (1518966589) is active in the NPPES registry as of the last update on 2020-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.