Rachel Layman, M.D.
NPI 1669594776 · Medical Oncology Physician · Houston, TX
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rachel Layman, M.D. is a Medical Oncology Physician provider in Houston, TX (NPI 1669594776).
Provider details
- NPI number
- 1669594776
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 35.090955 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
209 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 122 | $142 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 54 | $97 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 18 | $128 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 15 | $182 |
Typical Medicare-allowed amounts for these services range $97–$182 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Letrozole | 112 | 36 |
| Prochlorperazine Maleate | 33 | 14 |
| Abemaciclibbrand: Verzenio | 26 | — |
| Ribociclib Succinatebrand: Kisqali | 25 | — |
| Ondansetron Hcl | 25 | 11 |
| Tamoxifen Citrate | 16 | — |
| Alendronate Sodium | 14 | — |
| Lapatinib Ditosylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,876 across 10 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
- 2007-04-06
- Last updated
- 2017-01-06
Frequently asked questions
- What is Rachel Layman's NPI number?
- Rachel Layman's National Provider Identifier (NPI) is 1669594776, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rachel Layman's specialty?
- Rachel Layman is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Rachel Layman located?
- Rachel Layman's practice location on file with NPPES is 1515 Holcombe Blvd, Houston, TX 77030-4009.
- What is Rachel Layman's phone number?
- The practice phone number listed in the NPPES registry for Rachel Layman is (713) 792-6161.
- Does Rachel Layman accept Medicare?
- Rachel Layman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rachel Layman's NPI active?
- Yes — Rachel Layman's NPI (1669594776) is active in the NPPES registry as of the last update on 2017-01-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.