Hannah Grainger, NP
NPI 1861052565 · Nurse Practitioner · Royal Oak, MI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hannah Grainger, NP is a Nurse Practitioner provider in Royal Oak, MI (NPI 1861052565).
Provider details
- NPI number
- 1861052565
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 4704284711 (MI)
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
7 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
139 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 45 | $68 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 25 | $56 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 24 | $55 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 20 | $83 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 14 | $113 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 132 | 51 |
| Gabapentin | 69 | 24 |
| Omeprazole | 68 | 28 |
| Acyclovir | 68 | 27 |
| Allopurinol | 58 | 25 |
| Prednisone | 47 | 27 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 44 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$303 across 10 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
- 2019-06-17
- Last updated
- 2020-12-18
- Certified
- 2020-12-18
Frequently asked questions
- What is Hannah Grainger's NPI number?
- Hannah Grainger's National Provider Identifier (NPI) is 1861052565, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hannah Grainger's specialty?
- Hannah Grainger is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Hannah Grainger located?
- Hannah Grainger's practice location on file with NPPES is 3601 W 13 Mile Rd, Royal Oak, MI 48073-6712.
- What is Hannah Grainger's phone number?
- The practice phone number listed in the NPPES registry for Hannah Grainger is (248) 551-4400.
- Does Hannah Grainger accept Medicare?
- Hannah Grainger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hannah Grainger's NPI active?
- Yes — Hannah Grainger's NPI (1861052565) is active in the NPPES registry as of the last update on 2020-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.