Amy Costner-Lark, APRN-CNP
NPI 1770537037 · Family Nurse Practitioner · Oklahoma City, OK
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Amy Costner-Lark, APRN-CNP is a Family Nurse Practitioner provider in Oklahoma City, OK (NPI 1770537037).
Provider details
- NPI number
- 1770537037
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN-CNP
- Sex
- Female
- Sole proprietor
- No
- License
- 100294 (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 tenure28% of score
20 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
140 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 62 | $78 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 36 | $53 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 27 | $144 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 15 | $81 |
Typical Medicare-allowed amounts for these services range $53–$144 (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 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 54 | 15 |
| Memantine Hcl | 45 | 12 |
| Levothyroxine Sodium | 33 | 11 |
| Metformin Hcl | 32 | — |
| Duloxetine Hcl | 31 | — |
| Amlodipine Besylate | 29 | 12 |
| Meloxicam | 23 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-20
- Last updated
- 2019-08-22
Frequently asked questions
- What is Amy Costner-Lark's NPI number?
- Amy Costner-Lark's National Provider Identifier (NPI) is 1770537037, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Amy Costner-Lark's specialty?
- Amy Costner-Lark is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Amy Costner-Lark located?
- Amy Costner-Lark's practice location on file with NPPES is 3366 Nw Expressway Ste 200, Oklahoma City, OK 73112-4416.
- What is Amy Costner-Lark's phone number?
- The practice phone number listed in the NPPES registry for Amy Costner-Lark is (405) 713-9930.
- Does Amy Costner-Lark accept Medicare?
- Amy Costner-Lark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Amy Costner-Lark's NPI active?
- Yes — Amy Costner-Lark's NPI (1770537037) is active in the NPPES registry as of the last update on 2019-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.