1. Home
  2. Directory
  3. California
  4. Santa Monica
  5. Occupational Therapist
  6. NPI Profile

PAUL S GERSTENFELD MS, OTR/L, CHT
NPI 1639269277
Occupational Therapist - Hand in Santa Monica, CA

Active since October 13, 2006Accepts Medicare Assignment
147 BAY ST UNIT 21, SANTA MONICA, CA 90405(310) 396-8565(310) 396-0052 Get Directions Write a Review

NPPES record last updated: March 7, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Paul S Gerstenfeld Ms, Otr/l, Cht NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PAUL S GERSTENFELD MS, OTR/L, CHT (NPI 1639269277) is an individual hand provider in Santa Monica, California and active in the NPI registry since October 2006. He is a graduate of Other (2001).

NPPES Registry Identity

NPI1639269277
Entity TypeIndividualMale
Primary Taxonomy225XH1200X
Provider Legal NamePAUL S GERSTENFELDCredential: MS, OTR/L, CHT
Location Address147 BAY ST UNIT 21Santa Monica, CA 90405-1076
Mailing Address858 14th St Apt 3Santa Monica, CA 90403-1752 · (619) 417-2187
Phone(310) 396-8565
Fax(310) 396-0052
Sole ProprietorNo
Medical School CMSOtherGraduated 2001
Enumeration DateOctober 13, 2006
Last NPPES UpdateMarch 7, 2012
✔ NPI 1639269277 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ Primary SpecialtyOccupational Therapist · HandRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225XH1200X
Also ListedOrthotic FitterTaxonomy 225000000X
Also ListedOccupational TherapistTaxonomy 225X00000X · License OT4713 (CA)
Also ListedOccupational Therapist · ErgonomicsTaxonomy 225XE1200X
Also ListedOccupational Therapist · NeurorehabilitationTaxonomy 225XN1300X
147 BAY ST UNIT 21, Santa Monica, CA 90405
Open in Google Maps ↗

Other Identifiers 3

Other1059271CA · Nbcot
Medicare ID-Type UnspecifiedWOT4713ACA
OtherOT4713CA · Cbot

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Paul S Gerstenfeld Ms, Otr/l, Cht is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4082658265
PECOS Enrollment IDI20050617000932

Medicare Billing Reassignment

Medicare enrollment records show Paul Gerstenfeld reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hands On Ot
Same address
Hand
137 BAY ST UNIT 1
Santa Monica, CA 90405
  • Reassigned Medicare billing, California enrollment
  • 2 clinicians in this Medicare group
NPI 1639443906 (310) 396-8564

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Therapy procedure using manual technique, each 15 minutes 97140
This therapy involves using hands-on techniques to help improve your body's movement and function. These techniques may include stretching, resistance exercises, or gentle pressure. Each session lasts 15 minutes and aims to relieve pain, promote healing, and improve your overall health.
1,870 services97 patients
Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes 97110
This therapy involves exercises to boost strength, endurance, flexibility, and range of motion. Each session lasts 15 minutes. The goal is to improve physical function and overall health. It's a safe, beneficial method for enhancing well-being and fitness.
1,564 services93 patients
Therapy procedure using functional activities 97530
A therapy procedure using functional activities encourages you to use your own body movements in day-to-day tasks to aid recovery. It aims to improve your mobility, strength, and overall health by incorporating therapeutic exercises into your routine.
1,001 services58 patients
Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes 97112
This therapy helps retrain your brain, nerves, and muscles to work together. Through targeted exercises, your body learns to regain lost functions or improve current abilities. Each session lasts 15 minutes.
320 services25 patients
Application of ultrasound, each 15 minutes 97035
Ultrasound is a medical procedure that uses high-frequency sound waves to capture live images from inside your body. It's a painless process typically lasting 15 minutes per session. This method aids in diagnosing conditions and monitoring health without any radiation exposure.
83 services24 patients
Evaluation for occupational therapy, typically 30 minutes 97165
An evaluation for occupational therapy is a process where a therapist assesses your physical and mental abilities to perform daily activities. This 30-minute session helps identify any difficulties you may have and develop strategies for improvement.
81 services79 patients

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Paul Gerstenfeld's NPI number?

The NPI number for Paul Gerstenfeld is 1639269277. It was assigned to this individual provider in the NPPES registry on October 13, 2006.

Where is Paul Gerstenfeld located?

Paul Gerstenfeld practices at 147 Bay St Unit 21, Santa Monica, CA 90405. The listed phone number is (310) 396-8565.

What is Paul Gerstenfeld's specialty?

The primary specialty registered for this NPI is Occupational Therapist, specializing in Hand, with taxonomy code 225XH1200X.

Is Paul Gerstenfeld enrolled in Medicare?

Yes. Paul Gerstenfeld is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Paul Gerstenfeld's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Paul Gerstenfeld reassigns Medicare benefits to Hands On Ot (Santa Monica, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Paul Gerstenfeld's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Paul Gerstenfeld was last updated on March 7, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.