NPPES file of Aug 9, 2026

Allyson Elizabeth Klein, RN, ACNP

Acute Care Nurse Practitioner · West Hollywood, CA

Allyson Elizabeth Klein, RN, ACNP is an acute care nurse practitioner with a practice address in West Hollywood, California, and NPI 1609996958, issued on Mar 30, 2007. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1609996958
Name
Allyson Elizabeth Klein
Credential
RN, ACNP
Primary taxonomy
Acute Care Nurse Practitioner 363LA2100X
License number
43 430332 NY
Self-reported in NPPES; status is on the state search
Practice location
8700 Beverly Blvd, West Hollywood, CA 90048
Phone
(212) 305-9817
Enumerated
Mar 30, 2007
Record last updated
May 17, 2023
Medicare enrollment
Enrolled (PECOS I20230524000442); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 8700 Beverly Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ryan Abdul-HaqqVascular Surgery Physician1386087864
  2. Sina Abedi, MDAnesthesiology Physician1497558951
  3. Gohar AbrahamryanPhysician Assistant1871729715
  4. Barham Abu Dayyeh, MDGastroenterology Physician1902927353
  5. Anisa Abu-Ramaileh, PHARM.D., BCPSPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1447769732
  6. Jay Acharya, MDNeuroradiology Physician1871995498

Verify Allyson Elizabeth Klein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 87.7 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score80.9
  2. Costout of 100 · 30%49.4
  3. Promoting interoperabilityout of 100 · 25%99.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

One hospital affiliation

  1. Cedars-Sinai Medical CenterWest Hollywood, CA · Acute Care Hospitals5 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Allyson Elizabeth Klein among 1,810 acute care nurse practitioner records in California

Allyson Elizabeth Klein, RN, ACNP is one of 1,810 acute care nurse practitioner records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 6% of them.

  • NPI issued2007 · 6% of these records are older, 89% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated2006 · median 2018 among the 993 with a school on file
  • Record last updated2023 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

46 acute care nurse practitioner records list a practice address in West Hollywood

They are 46 of the 2,619 NPPES records with a practice address in West Hollywood, and 1,810 acute care nurse practitioner records in California.

The 8 acute care nurse practitioner records with the nearest ZIP codes

  1. Kimberly Alva, NPLos Angeles, CA 900481659583607
  2. Rachel Bywalec, NPLos Angeles, CA 900481154590024
  3. Judeen Camacho, N.P.Los Angeles, CA 900481881749208
  4. Bernice Coleman, PH.D, ACNP-BCWest Hollywood, CA 900481003009168
  5. Cherry Daniolco, ACNP, CNS, MSN, RNLos Angeles, CA 900481356511687
  6. Troy Don, D.C.West Hollywood, CA 900481124231758
  7. Jennifer Fleming, NPWest Hollywood, CA 900481184817249
  8. Gina Jamero, NPLos Angeles, CA 900481669406112

Common questions

What is Allyson Elizabeth Klein, RN, ACNP's NPI number?

Allyson Elizabeth Klein, RN, ACNP's National Provider Identifier (NPI) is 1609996958, issued on Mar 30, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Allyson Elizabeth Klein, RN, ACNP located?

The NPPES record lists a practice address at 8700 Beverly Blvd, West Hollywood, CA, 90048. Phone: (212) 305-9817. Providers update this record themselves, so call before visiting.

How can I verify Allyson Elizabeth Klein, RN, ACNP's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

What is Allyson Elizabeth Klein, RN, ACNP's MIPS final score?

The 2023 MIPS final score is 87.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.