NPI registry status
Active
2026 NPPES data Adult Health Nurse Practitioner NPI 1801271549 RN, MS, NP
Verify on CMS → Christopher King, RN, MS, NP
Adult Health Nurse Practitioner in San Mateo, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 29,811 in Adult Health Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
595
Medicare Part D claims · 18 beneficiaries · Adult Health Nurse Practitioner avg: 1K
What the federal data shows
Christopher King, RN, MS, NP filed 595 Medicare Part D claims in 2024 as an Adult Health Nurse Practitioner in San Mateo, California.
- 595
- Part D claims, 2024
- ≥65th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Christopher King, RN, MS, NP
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1801271549), first enumerated 07/23/2015.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 595 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Christopher King, RN, MS, NP's individual license status. Verify directly with the state medical board.
Source: MBC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1801271549 · Adult Health Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MID · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1801271549
- ENUM-MID 2015
- TAX-MID 30K Adult Health
- RX-LIGHT 595
- BOOK-LIGHT 1,472 in California
- PHOTO-ENUM William Byrd · 2015
Christopher King, RN, MS, NP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
595 ≥ 65th percentile 65% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Christopher King, RN, MS, NP?
Quality data not reportedPrimary specialty
Adult Health Nurse Practitioner
Medicare Part D claims
595 54% vs specialty avg
Specialty distribution in California
How Adult Health Nurse Practitioner compares to other specialties among California providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Adult Health Nurse Practitioner. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1801271549 |
|---|---|
| Specialty | Adult Health Nurse Practitioner |
| Credentials | RN, MS, NP |
| Gender | Male |
| NPI Issued | 07/23/2015 |
Hospital and facility affiliations
Facilities where Christopher King, RN, MS, NP bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
County OF San Mateo
San Mateo, CA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - California MBC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Christopher King, RN, MS, NP. To verify Christopher King, RN, MS, NP's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
595
Total Claims
$517K
Total Drug Cost
18
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 773.4
- Total Day Supply
- 22,427
- Generic Drug Cost
- $6K
- Opioid Claims
- 13 (2.2% rate)
Patient Demographics
- Average Patient Age
- 65.3 years
- Avg HCC Risk Score
- 1.75
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Christopher King, RN, MS, NP prescribes most
Top Medicare Part D drugs by claim count, 2024
- Gabapentin
Gabapentin
33 claims
- Tivicay
Tivicay
30 claims
- Descovy
Descovy
29 claims
- Pravastatin Sodium
Pravastatin Sodium
29 claims
- Biktarvy
Biktarvy
24 claims
- Atorvastatin Calcium
Atorvastatin Calcium
23 claims
- Jardiance
Jardiance
20 claims
- Ibuprofen
Ibuprofen
19 claims
| Drug | Claims |
|---|---|
| Gabapentin | 33 |
| Tivicay Dolutegravir Sodium | 30 |
| Descovy Emtricitabine/Tenofov Alafenam | 29 |
| Pravastatin Sodium | 29 |
| Biktarvy Bictegrav/Emtricit/Tenofov Ala | 24 |
| Atorvastatin Calcium | 23 |
| Jardiance Empagliflozin | 20 |
| Ibuprofen | 19 |
| Losartan Potassium | 18 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 17 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Adult Health Nurse Practitioner Overview
How Christopher King, RN, MS, NP fits within the Adult Health Nurse Practitioner landscape nationally.
29,811
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,291
Avg Claims per Provider
Christopher King, RN, MS, NP's 595 claims are below the specialty average of 1,291.
Nationwide Adult Health Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for King, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2015)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Adult Health Nurse Practitioner Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as King.
One of 1,472 Adult Health Nurse Practitioner providers enrolled in California, 5 are shown here.
Joel Aandahl
NP
Vallejo, CA
Maria Katrina Abad
AGPCNP-BC
San Carlos, CA
Corey Abbott
N.P.
Claremont, CA
Michael Abney
FNP
Pleasanton, CA
Ilona Abramova
NP
West Hills, CA
Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Christopher King, RN, MS, NP's specialty? ▼
Christopher King, RN, MS, NP specializes in Adult Health Nurse Practitioner and practices in San Mateo, California. Credentials: RN, MS, NP.
How much does Christopher King, RN, MS, NP prescribe under Medicare Part D? ▼
In 2024, Christopher King, RN, MS, NP wrote 595 Medicare Part D claims totaling $517K in drug costs for 18 beneficiaries.
Where is Christopher King, RN, MS, NP located? ▼
Christopher King, RN, MS, NP is located at 222 W 39TH AVE FL 1, San Mateo, CA, 94403. Phone: (650) 573-2385.
What is Christopher King, RN, MS, NP's NPI number? ▼
Christopher King, RN, MS, NP's National Provider Identifier (NPI) is 1801271549, issued on 07/23/2015.
Does Christopher King, RN, MS, NP prescribe opioids? ▼
Yes, Christopher King, RN, MS, NP had 13 opioid claims in 2024 with an opioid prescribing rate of 2.2%.
How many Adult Health Nurse Practitioner providers are there in the US? ▼
There are 29,811 Adult Health Nurse Practitioner providers across 55 states in the US. The average Adult Health Nurse Practitioner provider writes 1,291 Medicare Part D claims per year.
What drugs does Christopher King, RN, MS, NP prescribe most often? ▼
Based on 2024 Medicare Part D data, Christopher King, RN, MS, NP's most frequently prescribed drugs include Gabapentin, Tivicay, Descovy. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christopher King, RN, MS, NP accept Medicare? ▼
Christopher King, RN, MS, NP appears in CMS Medicare data with 595 Part D claims and 18 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christopher King, RN, MS, NP's credentials? ▼
Christopher King, RN, MS, NP's NPI is 1801271549 with credentials RN, MS, NP. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.