Mark Allen, FNP-BC
NPI 1134791411 · Family Nurse Practitioner · Saint Robert, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Allen, FNP-BC is a Family Nurse Practitioner provider in Saint Robert, MO (NPI 1134791411).
Provider details
- NPI number
- 1134791411
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Male
- Sole proprietor
- No
- License
- 2021027706 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
4 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
169 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 135 | $70 |
| Automated Urinalysis Test81003 | 34 | $2 |
Typical Medicare-allowed amounts for these services range $2–$70 (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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 98 | 98 |
| Doxycycline Hyclate | 60 | 60 |
| Ciprofloxacin Hcl | 36 | 36 |
| Azithromycin | 19 | 19 |
| Cephalexin | 16 | 16 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 14 | 14 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 14 | 14 |
Practice location
Mailing address
Additional practice locations (1)
- 807 Lakeside Manor DrO Fallon, MO 63366-1292Phone: (636) 856-4100
Registry dates
- Enumerated
- 2021-07-15
- Last updated
- 2021-09-13
- Certified
- 2021-09-13
Frequently asked questions
- What is Mark Allen's NPI number?
- Mark Allen's National Provider Identifier (NPI) is 1134791411, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Allen's specialty?
- Mark Allen is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Allen located?
- Mark Allen's practice location on file with NPPES is 608 Old Route 66, Saint Robert, MO 65584-3730.
- What is Mark Allen's phone number?
- The practice phone number listed in the NPPES registry for Mark Allen is (573) 336-5100.
- Does Mark Allen accept Medicare?
- Mark Allen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Allen's NPI active?
- Yes — Mark Allen's NPI (1134791411) is active in the NPPES registry as of the last update on 2021-09-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.