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GERALD ROSS WILLIAMS MD
NPI 1972531424
Orthopaedic Surgery in Bryn Mawr, PA

Active since June 30, 2006PECOS EnrolledAccepts Medicare Assignment
92.09/100
CMS Quality Rating
825 OLD LANCASTER RD STE 100, BRYN MAWR, PA 19010(267) 339-3558(673) 393-7632 Get Directions Write a Review

NPPES record last updated: May 21, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 1, 2022, Nov 10, 2015 (2 updates tracked since 2015).

About Gerald Ross Williams Md NPPES

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

GERALD ROSS WILLIAMS MD (NPI 1972531424) is an individual orthopaedic surgery provider in Bryn Mawr, Pennsylvania, licensed in Pennsylvania (MD041888L) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with St Luke's Hospital Bethlehem, and maintains a secondary practice location in Malvern.

NPPES Registry Identity

NPI1972531424
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameGERALD ROSS WILLIAMSCredential: MD
Location Address825 OLD LANCASTER RD STE 100Bryn Mawr, PA 19010-3234
Mailing Address833 Chestnut St Ste 520Philadelphia, PA 19107-4430 · (800) 321-9999 · Fax (267) 339-3761
Phone(267) 339-3558
Fax(673) 393-7632
Sole ProprietorNo
Medical School CMSTemple University School Of MedicineGraduated 1984
Enumeration DateJune 30, 2006
Last NPPES UpdateMay 21, 20242 updates tracked since enumeration
NPPES CertifiedMay 21, 2024
✔ NPI 1972531424 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
Licenses✔ Licensed in PA · MD041888L✔ Licensed in NJ · 25MA06546800✔ Licensed in FL · ME152883✔ Licensed in NY · 298602
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
Also ListedOrthopaedic Surgery · Adult Reconstructive Orthopaedic SurgeryTaxonomy 207XS0114X · License MD041888L (PA)
825 OLD LANCASTER RD STE 100, Bryn Mawr, PA 19010
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Secondary Practice Location 1

Location 1650 Carnegie Blvd Fl 2Malvern, PA 19355-8519 · Phone (267) 339-3558 · Fax (267) 339-3763

Other Identifiers 1

Other0448302000Ibc

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware and more.Insurance ›

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

Gerald Ross Williams Md 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 ID5395841845
PECOS Enrollment IDI20070501000080, I20121109000526
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 Reassignments

3

Medicare enrollment records show Gerald Williams reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Shriners Hospitals For Children
9.0 mi
Orthopaedic Surgery
3551 N BROAD ST
Philadelphia, PA 19140
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 83 clinicians in this Medicare group
NPI 1275271462 (813) 518-7679
Reconstructive Orthopaedic Associates II LLC
10 mi
Orthopaedic Surgery
833 CHESTNUT ST STE 1220
Philadelphia, PA 19107
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 361 clinicians in this Medicare group
NPI 1861433278 (800) 321-9999
Rothman Orthopaedics Of New Jersey, LLC
24 mi
Orthopaedic Surgery
999 ROUTE 73 N FL 34
Marlton, NJ 08053
  • Reassigned Medicare billing, New Jersey enrollment
  • 398 clinicians in this Medicare group
NPI 1215978630 (800) 321-9999

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 10

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.

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301
Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.
4,116 services304 patients
X-ray of shoulder, minimum of 2 views 73030
An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.
1,162 services646 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
769 services513 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
486 services307 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
174 services174 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
149 services144 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Luke's Hospital Bethlehem

Acute Care Hospitals · Bethlehem, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390049
Location801 Ostrum StreetBethlehem, PA 18015 · Northampton County
Emergency services Birthing friendly

Hospital Of Univ Of Pennsylvania

Acute Care Hospitals · Philadelphia, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390111
Location34th & Spruce StsPhiladelphia, PA 19104 · Philadelphia County
Emergency services Birthing friendly

Bryn Mawr Hospital

Acute Care Hospitals · Bryn Mawr, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390139
Location130 South Bryn Mawr AveBryn Mawr, PA 19010 · Montgomery County
Emergency services Birthing friendly

Chester County Hospital

Acute Care Hospitals · West Chester, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390179
Location701 East Marshall StreetWest Chester, PA 19380 · Chester County
Emergency services Birthing friendly

Main Line Hospital Lankenau

Acute Care Hospitals · Wynnewood, PA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390195
Location100 Lancaster AveWynnewood, PA 19096 · Montgomery County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19010 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
$92.69 typical visit price
range $59.88 – $180.99
Typical copayment $23.17 (range $14.97 – $45.24)
Most-billed visit code 99203
Established Patient
$74.47 typical visit price
range $19.30 – $147.29
Typical copayment $18.61 (range $4.82 – $36.82)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

92.09/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality86.6
Promoting Interoperability99
Improvement Activities40
Cost87.88

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Shoulder orthosis, acromio/clavicular (canvas and webbing type), prefabricated, off-the-shelf L3670
DME-Orthotic Devices · category DF000N
3 suppliers116 claims116 services$102.37 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 18

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARK LY WANG M.D., PH.D.
Orthopaedic Surgery (Hand Surgery)
825 OLD LANCASTER RD STE 100
BRYN MAWR, PA 19010
Delaware County (267) 339-3558
JEREMY IAN SIMON MD
Physical Medicine & Rehabilitation
825 OLD LANCASTER RD STE 100
BRYN MAWR, PA 19010
Delaware County (800) 321-9999
DR. MARK FAISAL KURD MD
Orthopaedic Surgery
825 OLD LANCASTER RD STE 100
BRYN MAWR, PA 19010
Delaware County (267) 339-3558
ROBERT PAUL GOOD M.D.
Orthopaedic Surgery
825 OLD LANCASTER RD STE 100
BRYN MAWR, PA 19010
Delaware County (267) 339-3558
ASIF M ILYAS M.D.
Orthopaedic Surgery (Hand Surgery)
825 OLD LANCASTER RD STE 100
BRYN MAWR, PA 19010
Delaware County (267) 339-3558
DR. CHRISTOPHER CLOYD DODSON MD
Orthopaedic Surgery (Sports Medicine)
825 OLD LANCASTER RD STE 100
BRYN MAWR, PA 19010
Delaware County (267) 339-3558
LAURA AMBER ROMANO MHS, PA-C
Physician Assistant
825 OLD LANCASTER RD STE 100
BRYN MAWR, PA 19010
Delaware County (800) 321-9999
JESS HANLEY LONNER M.D.
Orthopaedic Surgery
825 OLD LANCASTER RD STE 100
BRYN MAWR, PA 19010
Delaware County (267) 339-3558

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 Gerald Williams's NPI number?

The NPI number for Gerald Williams is 1972531424. It was assigned to this individual provider in the NPPES registry on June 30, 2006.

Where is Gerald Williams located?

Gerald Williams practices at 825 Old Lancaster Rd Ste 100, Bryn Mawr, PA 19010. The listed phone number is (267) 339-3558.

What is Gerald Williams's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Gerald Williams enrolled in Medicare?

Yes. Gerald Williams 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 organizations bill Medicare for Gerald Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gerald Williams reassigns Medicare benefits to 3 organizations: Shriners Hospitals For Children (Philadelphia, PA), Reconstructive Orthopaedic Associates II LLC (Philadelphia, PA) and Rothman Orthopaedics Of New Jersey, LLC (Marlton, NJ). Each 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 Gerald Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gerald Williams accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Buckeye Health Plan, CareSource and Oscar Health list Gerald Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Gerald Williams affiliated with any hospitals?

According to CMS data, Gerald Williams is affiliated with St Luke's Hospital Bethlehem, Hospital Of Univ Of Pennsylvania, Bryn Mawr Hospital, Chester County Hospital and Main Line Hospital Lankenau.

When was this NPI record last updated?

The NPPES record for Gerald Williams was last updated on May 21, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.