1. Home
  2. Directory
  3. California
  4. Manhattan Beach
  5. Obstetrics Gynecology
  6. NPI Profile

MR. AARON MADISON ROSEN M.D.
NPI 1285015313
Obstetrics & Gynecology in Manhattan Beach, CA

Active since June 15, 2015PECOS EnrolledAccepts Medicare Assignment
1200 ROSECRANS AVE STE 104, MANHATTAN BEACH, CA 90266(310) 726-9072(310) 726-9072 Get Directions Write a Review

NPPES record last updated: July 23, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mr. Aaron Madison Rosen M.d. NPPES

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

MR. AARON MADISON ROSEN M.D. (NPI 1285015313) is an individual obstetrics & gynecology provider in Manhattan Beach, California, licensed in California (A160663) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS and is a graduate of Other (2015).

NPPES Registry Identity

NPI1285015313
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameMR. AARON MADISON ROSENCredential: M.D.
Location Address1200 ROSECRANS AVE STE 104Manhattan Beach, CA 90266-2470
Mailing Address1200 Rosecrans Ave Ste 104Manhattan Beach, CA 90266-2470 · (310) 726-9072 · Fax (310) 726-9072
Phone(310) 726-9072
Fax(310) 726-9072
Sole ProprietorYes
Medical School CMSOtherGraduated 2015
Enumeration DateJune 15, 2015
Last NPPES UpdateJuly 23, 2020
NPPES CertifiedJuly 23, 2020
✔ NPI 1285015313 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · A160663
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 125.066546 (IL)
1200 ROSECRANS AVE STE 104, Manhattan Beach, CA 90266
Open in Google Maps ↗

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

Mr. Aaron Madison Rosen M.d. 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 ID8820456460
PECOS Enrollment IDI20230614001509
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

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

Obhg California, P.C.
2,049 mi
Obstetrics & Gynecology
777 LOWNDES HILL RD BLDG 1
Greenville, SC 29607
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Obhg California PC
  • 711 clinicians in this Medicare group
NPI 1215258892 (800) 967-2289

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90266 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Aaron Rosen's NPI number?

The NPI number for Aaron Rosen is 1285015313. It was assigned to this individual provider in the NPPES registry on June 15, 2015.

Where is Aaron Rosen located?

Aaron Rosen practices at 1200 Rosecrans Ave Ste 104, Manhattan Beach, CA 90266. The listed phone number is (310) 726-9072.

What is Aaron Rosen's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Aaron Rosen enrolled in Medicare?

Yes. Aaron Rosen 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 Aaron Rosen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Rosen reassigns Medicare benefits to Obhg California, P.C. (Greenville, SC). 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 Aaron Rosen'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 Aaron Rosen was last updated on July 23, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.