Mark Fergeson, NP-C
NPI 1497170526 · Family Nurse Practitioner · Oklahoma City, OK
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Fergeson, NP-C is a Family Nurse Practitioner provider in Oklahoma City, OK (NPI 1497170526).
Provider details
- NPI number
- 1497170526
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- 72566 (OK)
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 tenure25% of score
12 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
107 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 76 | $92 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 31 | $68 |
Typical Medicare-allowed amounts for these services range $68–$92 (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 · 36 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Testosterone Cypionate | 88 | 15 |
| Progesterone, Micronizedbrand: Progesterone | 75 | 13 |
| Estradiol | 52 | 12 |
| Gabapentin | 37 | — |
| Amantadine Hclbrand: Amantadine | 30 | — |
| Ondansetronbrand: Ondansetron Odt | 25 | — |
| Omega-3 Acid Ethyl Esters | 24 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$581 across 28 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
- 2014-02-26
- Last updated
- 2023-11-02
- Certified
- 2023-11-02
Frequently asked questions
- What is Mark Fergeson's NPI number?
- Mark Fergeson's National Provider Identifier (NPI) is 1497170526, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Fergeson's specialty?
- Mark Fergeson is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Fergeson located?
- Mark Fergeson's practice location on file with NPPES is 1601 Sw 89th St Ste D100, Oklahoma City, OK 73159-6378.
- What is Mark Fergeson's phone number?
- The practice phone number listed in the NPPES registry for Mark Fergeson is (405) 546-7888.
- Does Mark Fergeson accept Medicare?
- Mark Fergeson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Fergeson's NPI active?
- Yes — Mark Fergeson's NPI (1497170526) is active in the NPPES registry as of the last update on 2023-11-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.