DR. MAXWELL STEM M.D.
NPI 1093033300
Ophthalmology in Camp Hill, PA

Q: What is Maxwell Stem's NPI number?

The NPI number for Maxwell Stem is 1093033300. It was assigned to this individual provider in the NPPES registry on May 11, 2010.

Q: What is Maxwell Stem's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Q: When was this NPI record last updated?

The NPPES record for Maxwell Stem was last updated on September 6, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since May 11, 2010PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

220 GRANDVIEW AVE STE 200, CAMP HILL, PA 17011(717) 761-8688 Get Directions Write a Review

NPPES record last updated: September 6, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 6, 2022, Jul 7, 2020, Jul 23, 2019 and 3 more (6 updates tracked since 2018).

On this page

About Dr. Maxwell Stem M.d. NPPES

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

DR. MAXWELL STEM M.D. (NPI 1093033300) is an individual ophthalmology provider in Camp Hill, Pennsylvania, licensed in Pennsylvania (MD463002) and active in the NPI registry since May 2010. He is enrolled in Medicare PECOS, is affiliated with Penn State Health Holy Spirit Medical Center, and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1093033300

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameDR. MAXWELL STEMCredential: M.D.

Location Address220 GRANDVIEW AVE STE 200Camp Hill, PA 17011-1776

Mailing Address220 Grandview Ave Ste 200Camp Hill, PA 17011-1776

Phone(717) 761-8688

Sole ProprietorNo

Medical School CMSPennsylvania State University College Of MedicineGraduated 2010

Enumeration DateMay 11, 2010

Last NPPES UpdateSeptember 6, 20226 updates tracked since enumeration

NPPES CertifiedSeptember 6, 2022

✔ NPI 1093033300 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in PA · MD463002

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Also ListedOphthalmology · Retina SpecialistTaxonomy 207WX0107X · License MD463002 (PA)

220 GRANDVIEW AVE STE 200, Camp Hill, PA 17011

Open in Google Maps ↗

Secondary Practice Locations 4

Location 12525 Green Tech Dr Ste AState College, PA 16803-2302 · Phone (800) 633-8688

Location 21600 6th Ave Ste 112York, PA 17403-2627 · Phone (717) 846-1718

Location 32170 Noll Dr Ste 400Lancaster, PA 17603-7609 · Phone (717) 205-4020

Location 41249 Cocoa Ave Ste 104Hershey, PA 17033-3700 · Phone (717) 533-3937

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

Dr. Maxwell Stem 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 ID8224334560

PECOS Enrollment IDI20180521001261

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 Maxwell Stem reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pennsylvania Retina Specialists PC

Same address

Ophthalmology

220 GRANDVIEW AVE, SUITE 200
Camp Hill, PA 17011

Reassigned Medicare billing, Pennsylvania enrollment
7 clinicians in this Medicare group

NPI 1568428126 (717) 761-8688

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 16

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, faricimab-svoa, 0.1 mg J2777

Faricimab-svoa is a medication given through an injection into the eye to treat certain eye conditions. The 0.1 mg dosage helps control disease progression, improving vision and eye health. The procedure is done by a healthcare professional.

26,160 services128 patients

Imaging of retina 92134

Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.

2,146 services713 patients

Injection, aflibercept, 1 mg J0178

Aflibercept injection is a treatment for certain eye conditions that affect vision. It works by blocking abnormal blood vessel growth and leakage in the eye, which can cause vision loss. The medication is administered directly into the eye by a healthcare professional.

1,916 services233 patients

Injection of drug into eye 67028

An injection into the eye is a procedure where a medication is delivered directly into your eye to treat various conditions. A local anesthetic is applied to numb the eye, ensuring minimal discomfort. The drug helps manage diseases like macular degeneration or diabetic retinopathy.

1,756 services407 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.

987 services556 patients

Injection, ranibizumab, 0.1 mg J2778

Ranibizumab is a medication given via injection to treat certain eye conditions like age-related macular degeneration. It works by slowing vision loss and in some cases, improving vision by blocking abnormal blood vessel growth in the eye.

694 services42 patients

Photography of the retina 92250

Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.

256 services240 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

179 services151 patients

Established patient complete exam of visual system 92014

An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.

161 services160 patients

Compounded drug, not otherwise classified J7999

A compounded drug is a personalized medication created to meet unique patient needs. If you can't take standard drugs due to allergies or need a specific dosage not commercially available, a pharmacist can mix ingredients to make a drug specifically for you.

90 services31 patients

New patient complete exam of visual system 92004

A new patient complete exam of the visual system is a thorough evaluation of your eyes and vision. It checks for any potential issues and assesses overall eye health. It includes tests for visual acuity, eye movement, and light response.

85 services85 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

74 services74 patients

Exam of retinal blood vessels using a special camera after injection of a dye 92235

This procedure, known as a fluorescein angiography, involves taking images of the back of your eye. A dye is injected into your arm that travels to your eye, highlighting the blood vessels in your retina. This helps identify any abnormalities.

39 services39 patients

Unclassified biologics J3590

Unclassified biologics are a type of treatment derived from living organisms. They can include a wide range of substances, such as vaccines, blood components, or genes, used to prevent or treat diseases. Each is specifically designed to interact with the body's natural defenses to promote healing.

24 services22 patients

Removal of membrane of retina with removal of internal limiting membrane of retina 67042

This procedure involves the surgical removal of a thin layer, called the membrane, from the retina. It also includes the removal of the innermost layer of the retina, known as the internal limiting membrane. This can help improve vision.

17 services17 patients

Photocoagulation treatment to prevent detachment of retina 67145

Photocoagulation is a procedure used to treat retinal disorders. A special laser is directed at the retina to create small burns. These burns form scar tissue which helps to secure the retina to the eye's wall, preventing detachment and preserving vision.

15 services15 patients

Hospital Affiliations CMS Care Compare

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

Penn State Health Holy Spirit Medical Center

Acute Care Hospitals · Camp Hill, PA

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390004

Location503 North 21st StreetCamp Hill, PA 17011 · Cumberland County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 17011 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

$126.34 typical visit price

range $54.64 – $166.87

Typical copayment $31.58 (range $13.66 – $41.71)

Most-billed visit code 99204

Established Patient

$68.36 typical visit price

range $17.33 – $135.84

Typical copayment $17.09 (range $4.33 – $33.96)

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.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

100

Improvement Activities

Other Providers at the Same Location NPPES

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

DR. TAHSIN KHUNDKAR M.D.

Ophthalmology

220 GRANDVIEW AVE STE 200
CAMP HILL, PA 17011

Cumberland County (717) 761-8688

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 Maxwell Stem's NPI number?

The NPI number for Maxwell Stem is 1093033300. It was assigned to this individual provider in the NPPES registry on May 11, 2010.

Where is Maxwell Stem located?

Maxwell Stem practices at 220 Grandview Ave Ste 200, Camp Hill, PA 17011. The listed phone number is (717) 761-8688.

What is Maxwell Stem's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Maxwell Stem enrolled in Medicare?

Yes. Maxwell Stem 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 Maxwell Stem's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maxwell Stem reassigns Medicare benefits to Pennsylvania Retina Specialists PC (Camp Hill, PA). 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 Maxwell Stem's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Maxwell Stem accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Buckeye Health Plan and AmeriHealth Caritas Next list Maxwell Stem 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 Maxwell Stem affiliated with any hospitals?

According to CMS data, Maxwell Stem is affiliated with Penn State Health Holy Spirit Medical Center.

When was this NPI record last updated?

The NPPES record for Maxwell Stem was last updated on September 6, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.