Mark Mehaffey, M.D.
NPI 1437171287 · Emergency Medicine Physician · Houston, TX
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Mehaffey, M.D. is a Emergency Medicine Physician provider in Houston, TX (NPI 1437171287).
Provider details
- NPI number
- 1437171287
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- K5046 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
70 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 52 | $122 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 18 | $178 |
Typical Medicare-allowed amounts for these services range $122–$178 (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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 51 | 50 |
| Azithromycin | 42 | 39 |
| Methylprednisolone | 36 | 35 |
| Cefpodoxime Proxetil | 28 | 28 |
| Doxycycline Hyclate | 27 | 26 |
| Naproxen | 25 | 23 |
| Ondansetronbrand: Ondansetron Odt | 25 | 14 |
| Famotidine | 17 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-24
- Last updated
- 2020-07-02
- Certified
- 2020-07-02
Frequently asked questions
- What is Mark Mehaffey's NPI number?
- Mark Mehaffey's National Provider Identifier (NPI) is 1437171287, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Mehaffey's specialty?
- Mark Mehaffey is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Mehaffey located?
- Mark Mehaffey's practice location on file with NPPES is 6720 Bertner St, Houston, TX 77030-2604.
- What is Mark Mehaffey's phone number?
- The practice phone number listed in the NPPES registry for Mark Mehaffey is (832) 355-2121.
- Does Mark Mehaffey accept Medicare?
- Mark Mehaffey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Mehaffey's NPI active?
- Yes — Mark Mehaffey's NPI (1437171287) is active in the NPPES registry as of the last update on 2020-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.