Diana Hylton, MD
NPI 1033389903 · Neurology Physician · Merced, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Hylton, MD is a Neurology Physician provider in Merced, CA (NPI 1033389903).
Provider details
- NPI number
- 1033389903
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A41225 (CA)
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
18 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
1,491 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 | 810 | $87 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 323 | $54 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 184 | $157 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 122 | $122 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 52 | $172 |
Typical Medicare-allowed amounts for these services range $54–$172 (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 · 134 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Donepezil Hcl | 434 | 119 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 406 | 47 |
| Levetiracetam | 358 | 79 |
| Gabapentin | 294 | 63 |
| Topiramate | 236 | 48 |
| Sertraline Hcl | 192 | 47 |
| Trazodone Hcl | 186 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,445 across 252 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
- 2008-03-07
- Last updated
- 2008-03-07
Frequently asked questions
- What is Diana Hylton's NPI number?
- Diana Hylton's National Provider Identifier (NPI) is 1033389903, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Hylton's specialty?
- Diana Hylton is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Hylton located?
- Diana Hylton's practice location on file with NPPES is 750 W Olive Ave, Merced, CA 95348.
- What is Diana Hylton's phone number?
- The practice phone number listed in the NPPES registry for Diana Hylton is (209) 723-2132.
- Does Diana Hylton accept Medicare?
- Diana Hylton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Hylton's NPI active?
- Yes — Diana Hylton's NPI (1033389903) is active in the NPPES registry as of the last update on 2008-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.