Christalyn Williams, CRNP
NPI 1811425135 · Family Nurse Practitioner · Montgomery, AL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christalyn Williams, CRNP is a Family Nurse Practitioner provider in Montgomery, AL (NPI 1811425135).
Provider details
- NPI number
- 1811425135
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP
- Sex
- Female
- Sole proprietor
- No
- License
- 1-129569 (AL)
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
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
443 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 | 325 | $76 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 118 | $112 |
Typical Medicare-allowed amounts for these services range $76–$112 (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 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Exemestane | 163 | 48 |
| Letrozole | 97 | 25 |
| Anastrozole | 54 | 17 |
| Apixabanbrand: Eliquis | 43 | 11 |
| Ondansetronbrand: Ondansetron Odt | 31 | 20 |
| Levothyroxine Sodium | 25 | 11 |
| Rivaroxabanbrand: Xarelto | 20 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,603 across 79 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
Additional practice locations (1)
- 645 Mcqueen Smith Rd N Ste 207Prattville, AL 36066-7263Phone: (334) 351-1000Fax: (334) 273-2228
Registry dates
- Enumerated
- 2017-05-31
- Last updated
- 2023-07-18
- Certified
- 2023-07-18
Frequently asked questions
- What is Christalyn Williams's NPI number?
- Christalyn Williams's National Provider Identifier (NPI) is 1811425135, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christalyn Williams's specialty?
- Christalyn Williams is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Christalyn Williams located?
- Christalyn Williams's practice location on file with NPPES is 4145 Carmichael Rd, Montgomery, AL 36106-2803.
- What is Christalyn Williams's phone number?
- The practice phone number listed in the NPPES registry for Christalyn Williams is (334) 273-7000.
- Does Christalyn Williams accept Medicare?
- Christalyn Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christalyn Williams's NPI active?
- Yes — Christalyn Williams's NPI (1811425135) is active in the NPPES registry as of the last update on 2023-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.