NPI registry status
Active
2026 NPPES data Neurology Physician NPI 1013133768 M.D.
Verify on CMS → Olga Waln, M.D.
Neurology Physician in Houston, Texas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 20,467 in Neurology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
3K
Medicare Part D claims · 361 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
77%
generic claims · 23% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.5K
114 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Olga Waln, M.D. filed 2,923 Medicare Part D claims in 2024 as a Neurology Physician in Houston, Texas, prescribing 77% generic.
- 3K
- Part D claims, 2024
- 77%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥88th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Olga Waln, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1013133768), first enumerated 04/18/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 2,923 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$2.5K in reported industry payments (114 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Texas statewide board action statistics are published annually — these figures describe aggregate state activity, not Olga Waln, M.D.'s individual license status. Verify directly with the state medical board.
Source: TMB annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
Compare Waln with other Neurology Physician providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Texas
- Dr. Hisham Abdelmotilib, MD, PHD Houston, TX
- Dr. Megan Abdurashidova, DO Round Rock, TX
- Dr. Adetoun Abisogun Musa, M.D. San Antonio, TX
- Dr. Sami Aboumatar, M.D. Austin, TX
- Dr. Anitha Abraham, MD Houston, TX
- Dr. Amrit Achari, MD Houston, TX
Other specialties in Houston: Student in an Organized Health Care Education/Training Program (4,947) · Pharmacist (2,349) · Behavior Technician (2,305) · Family Nurse Practitioner (2,271)
CMS NPPES provider registry desk
NPI 1013133768 · Neurology Physician
NPI-10 · ENUM-MID · TAX-MID · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1013133768
- ENUM-MID 2007
- TAX-MID 20K Neurology Physician
- RX-MID 2,923
- BOOK-LIGHT 1,308 in Texas
- PHOTO-ENUM Adam Foreman, M.D. · 2007
Olga Waln, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
2,923 ≥ 88th percentile 88% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Olga Waln, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Olga Waln, M.D.?
Quality data not reportedPrimary specialty
Neurology Physician
Medicare Part D claims
2,923 116% vs specialty avg
Specialty distribution in Texas
How Neurology Physician compares to other specialties among Texas providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Neurology Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1013133768 |
|---|---|
| Specialty | Neurology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 04/18/2007 |
Hospital and facility affiliations
Facilities where Olga Waln, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Houston Methodist Specialty Physicians
Houston, TX
Tmh Physician Associates PLLC
Bellaire, TX
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Olga Waln, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$2.5K
Largest payer
ABBVIE INC.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - Texas TMB 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 - they are NOT specific to Olga Waln, M.D.. To verify Olga Waln, M.D.'s current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases
TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Olga Waln, M.D. - brand share 23.0%
Neurology Physician average
23% brand-name claims vs 77% generic, on 2,923 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
2,923
Total Claims
$2.9M
Total Drug Cost
361
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 5,435.1
- Total Day Supply
- 161,538
- Brand vs Generic
- 23% brand / 77% generic
- Brand Drug Cost
- $2.8M
- Generic Drug Cost
- $131K
Patient Demographics
- Average Patient Age
- 73.9 years
- Avg HCC Risk Score
- 1.70
- Gender Split
- 48% female / 52% male
- Age Distribution
- <65: 25, 65-74: 162, 75-84: 141, 85+: 33
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Olga Waln, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Carbidopa-Levodopa
Carbidopa-Levodopa
840 claims
- Rytary 162
Rytary
162 claims
- Primidone 158
Primidone
158 claims
- Rasagiline Mesylate 111
Rasagiline Mesylate
111 claims
- Amantadine 93
Amantadine
93 claims
- Austedo 89
Austedo
89 claims
- Nuplazid 87
Nuplazid
87 claims
- Carbidopa-Levodopa… 75
Carbidopa-Levodopa Er
75 claims
| Drug | Claims |
|---|---|
| Carbidopa-Levodopa Carbidopa/Levodopa | 840 |
| Rytary Carbidopa/Levodopa | 162 |
| Primidone | 158 |
| Rasagiline Mesylate | 111 |
| Amantadine Amantadine Hcl | 93 |
| Austedo Deutetrabenazine | 89 |
| Nuplazid Pimavanserin Tartrate | 87 |
| Carbidopa-Levodopa Er Carbidopa/Levodopa | 75 |
| Pramipexole Dihydrochloride Pramipexole Di-Hcl | 64 |
| Topiramate | 57 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Neurology Physician Overview
How Olga Waln, M.D. fits within the Neurology Physician landscape nationally.
20,467
Neurology Physician Providers in US
54
States with Neurology Physician
1,356
Avg Claims per Provider
Olga Waln, M.D.'s 2,923 claims are above the specialty average of 1,356.
Nationwide Neurology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Waln, both outside Texas so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Neurology Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Waln.
One of 1,308 Neurology Physician providers enrolled in Texas, 11 are shown on this page.
Dr. Madhureeta Achari
MD
Houston, TX
Dr. Ashwin Achuthaprasad
MD
Houston, TX
Dr. Quentin Adams
MD
Fort Worth, TX
Dr. Ishan Adhikari
MD
San Antonio, TX
Dr. Rachel Adlis
MD
Austin, TX
Compare Neurology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Olga Waln, M.D.'s specialty? ▼
Olga Waln, M.D. specializes in Neurology Physician and practices in Houston, Texas. Credentials: M.D..
How much does Olga Waln, M.D. prescribe under Medicare Part D? ▼
In 2024, Olga Waln, M.D. wrote 2,923 Medicare Part D claims totaling $2.9M in drug costs for 361 beneficiaries.
Where is Olga Waln, M.D. located? ▼
Olga Waln, M.D. is located at 6560 FANNIN ST, Houston, TX, 77030. Phone: (713) 441-9551.
What is Olga Waln, M.D.'s NPI number? ▼
Olga Waln, M.D.'s National Provider Identifier (NPI) is 1013133768, issued on 04/18/2007.
Does Olga Waln, M.D. prescribe more brand-name or generic drugs? ▼
Olga Waln, M.D.'s prescribing is 23% brand-name and 77% generic drugs by claim count, with $2.8M in brand drug costs.
How many Neurology Physician providers are there in the US? ▼
There are 20,467 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,356 Medicare Part D claims per year.
What drugs does Olga Waln, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Olga Waln, M.D.'s most frequently prescribed drugs include Carbidopa-Levodopa, Rytary, Primidone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Olga Waln, M.D. accept Medicare? ▼
Olga Waln, M.D. appears in CMS Medicare data with 2,923 Part D claims and 361 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Olga Waln, M.D.'s credentials? ▼
Olga Waln, M.D.'s NPI is 1013133768 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.