Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

GREGORY W NIEMER M.D.
NPI 1356449367
Internal Medicine - Rheumatology in Summerville, SC

Q: What is Gregory Niemer's NPI number?

The NPI number for Gregory Niemer is 1356449367. It was assigned to this individual provider in the NPPES registry on September 21, 2006.

Q: What is Gregory Niemer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Niemer was last updated on July 7, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since September 21, 2006PECOS EnrolledAccepts Medicare Assignment

96.08/100

CMS Quality Rating

2001 2ND AVE STE 201, SUMMERVILLE, SC 29486(843) 572-4840(843) 793-6171 Get Directions Write a Review

NPPES record last updated: July 7, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 7, 2026, Jul 30, 2024, Sep 13, 2022 and 3 more (6 updates tracked since 2016).

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About Gregory W Niemer M.d. NPPES

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

GREGORY W NIEMER M.D. (NPI 1356449367) is an individual rheumatology provider in Summerville, South Carolina, licensed in South Carolina (18631) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Bon Secours-st Francis Xavier Hospital, and is a graduate of Medical University Of South Carolina College Of Medicine (1995).

NPPES Registry Identity

NPI1356449367

Entity TypeIndividualMale

Primary Taxonomy207RR0500X

Provider Legal NameGREGORY W NIEMERCredential: M.D.

Location Address2001 2ND AVE STE 201Summerville, SC 29486

Mailing Address2001 2nd Ave Ste 201Summerville, SC 29486-7881 · (843) 572-4840 · Fax (843) 764-2726

Phone(843) 572-4840

Fax(843) 793-6171

Sole ProprietorNo

Medical School CMSMedical University Of South Carolina College Of MedicineGraduated 1995

Enumeration DateSeptember 21, 2006

Last NPPES UpdateJuly 7, 20266 updates tracked since enumeration

NPPES CertifiedJuly 7, 2026

✔ NPI 1356449367 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians

Taxonomy Code207RR0500X

License✔ Licensed in SC · 18631

Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

2001 2ND AVE STE 201, Summerville, SC 29486

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of Alabama and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gregory W Niemer 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 ID8628241536

PECOS Enrollment IDI20111109000008

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.

Areas of Expertise CMS Part B claims 36

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, tocilizumab, 1 mg J3262

Tocilizumab is a medication administered via injection. It's used to treat certain conditions like rheumatoid arthritis by reducing inflammation in the body. It works by blocking a substance in the body that leads to inflammation.

31,560 services25 patients

Injection, golimumab, 1 mg, for intravenous use J1602

Golimumab is a medication given through an IV (a small tube in your vein). It helps to reduce inflammation and pain by blocking a protein in your body that causes inflammation. It's often used to treat conditions like rheumatoid arthritis, psoriatic arthritis, and ankylosing spondylitis.

22,860 services74 patients

Injection, certolizumab pegol, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) J0717

Certolizumab pegol is a medication injected under a doctor's supervision. It's used to treat certain inflammatory conditions like rheumatoid arthritis. The injection helps reduce symptoms like pain and swelling. Note that this drug isn't for self-administration.

19,000 services18 patients

Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) J0129

Abatacept is a medication administered via injection under a doctor's supervision. It's used to treat conditions like rheumatoid arthritis by moderating the immune system. This code applies when the doctor administers the drug, not for self-administration.

10,525 services60 patients

Injection, romosozumab-aqqg, 1 mg J3111

Romosozumab-aqqg is a medication given by injection to treat osteoporosis in patients at high risk for fractures. It works by increasing bone mass and strength, reducing the risk of fractures.

7,350 services17 patients

Injection, infliximab-abda, biosimilar, (renflexis), 10 mg Q5104

Infliximab-abda (Renflexis) is a biosimilar medication given via injection. It's used to treat certain autoimmune conditions by reducing inflammation and immune system activity. The dosage is 10 mg.

2,010 services17 patients

Injection, denosumab, 1 mg J0897

Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.

1,920 services29 patients

Injection, infliximab, excludes biosimilar, 10 mg J1745

Infliximab is a medication given via injection to treat certain autoimmune conditions. It works by blocking the action of a substance in your body that causes inflammation. Each dose is based on your medical condition and response to treatment.

1,480 services19 patients

Injection, rituximab, 10 mg J9312

Rituximab is a medication given via injection. It's used to treat certain types of cancer and autoimmune diseases. The 10 mg dosage refers to the amount of the drug in the injection. It works by targeting and destroying specific cells, helping your body's immune system.

1,150 services11 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.

617 services433 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

571 services384 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

553 services373 patients

Measurement c-reactive protein for detection of infection or inflammation 86140

C-reactive protein (CRP) test is a blood test that checks for signs of inflammation or infection in the body. High levels of CRP often suggest that there's inflammation or a bacterial infection. This test helps in monitoring and managing conditions like arthritis and heart disease.

548 services380 patients

Red blood cell sedimentation rate, to detect inflammation, automated 85652

The Red Blood Cell Sedimentation Rate is a test that helps detect inflammation in the body. It's automated, meaning a machine does the work. This test measures how fast red blood cells settle at the bottom of a tube in an hour. A faster rate may indicate inflammation.

527 services363 patients

Administration of chemotherapy into vein, 1 hour or less 96413

Chemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.

438 services224 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

310 services245 patients

Measurement of antibody for assessment of autoimmune disorder, any method 86235

This procedure measures the level of specific antibodies in your body to assess if you have an autoimmune disorder. Antibodies are proteins your immune system produces. In autoimmune disorders, these antibodies mistakenly attack your own cells. This test helps identify such conditions.

266 services37 patients

Measurement of complement (immune system proteins), antigen, 86160

The measurement of complement (immune system proteins) and antigen is a blood test. It helps to assess how your immune system is functioning. Complement proteins play a role in your body's immune response, and antigens trigger this response. This test helps in diagnosing and monitoring certain diseases.

190 services82 patients

Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle 96401

This procedure involves giving anti-cancer drugs, which don't contain hormones, into the muscle or under the skin. These drugs help to stop the growth of cancer cells. The process is usually quick and done by a healthcare professional.

161 services63 patients

Creatine kinase (cardiac enzyme) level, total 82550

The total Creatine Kinase (CK) level test is a blood test that helps assess the health of your heart. It measures an enzyme called CK that's released into the bloodstream when heart or other muscle tissue is damaged. High levels may indicate a heart attack or muscle disorder.

100 services87 patients

Analysis of substance using immunoassay technique, multiple step method 83516

This procedure involves the use of an immunoassay, a highly sensitive technique, to detect and measure substances in your body. It involves multiple steps and is commonly used in diagnosing and monitoring various health conditions.

98 services47 patients

Uric acid level, blood 84550

A blood uric acid level test measures the amount of uric acid in your blood. Uric acid is a waste product that your body produces when it breaks down purines, substances found in your body and in certain foods. High levels may lead to gout or kidney stones.

87 services65 patients

Vitamin d-3 level 82306

A Vitamin D-3 level test measures the amount of Vitamin D-3, a crucial nutrient, in your body. This test helps identify if your levels are too low or too high. Low levels may lead to bone weakness, while high levels could harm your kidneys. It's a simple blood test.

76 services73 patients

Administration of chemotherapy into vein, each additional hour 96415

Chemotherapy is a treatment method that uses drugs to destroy cancer cells. The drugs are administered into a vein, usually in the arm. Each additional hour of chemotherapy allows for more of the medication to enter your bloodstream to fight against the cancer cells.

67 services29 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.

63 services63 patients

Injection of additional new drug or substance into vein 96375

This procedure involves introducing a new medication or substance into your bloodstream via a vein. It's typically done using a small needle. The substance can help treat various conditions or assist in diagnostic procedures. It's generally safe and monitored by professionals.

59 services35 patients

Screening test for autoimmune disorder 86038

A screening test for autoimmune disorders is a medical check-up that helps identify if your body's immune system is attacking its own cells. It involves a simple blood draw and analyzes various markers to detect potential issues. This test aids in early detection and effective treatment.

54 services53 patients

Rheumatoid factor level 86431

The Rheumatoid Factor Level test is a blood test that helps detect the presence of Rheumatoid Factor (RF), a protein produced by your immune system. High RF levels often indicate autoimmune diseases like rheumatoid arthritis. The test involves a simple blood draw and lab analysis.

49 services47 patients

Tuberculosis test, gamma interferon 86480

A gamma interferon tuberculosis test is a blood test used to diagnose tuberculosis, a serious lung disease. The test measures your immune system's response to TB bacteria. It's a safe, straightforward procedure that can help ensure your health.

46 services46 patients

Measurement of antibody for rheumatoid arthritis assessment 86200

This procedure measures the level of certain antibodies in your blood. These antibodies can be higher in people with rheumatoid arthritis, a condition causing joint inflammation. The test helps in diagnosing or monitoring the disease.

43 services41 patients

Measurement of dna antibody, native or double stranded 86225

The measurement of DNA antibody, native or double stranded, is a blood test that helps detect autoimmune disorders, such as lupus. It identifies if your body is producing antibodies against its own DNA, which can indicate an overactive immune response.

38 services37 patients

Measurement of dna antibody, single stranded 86226

The measurement of single-stranded DNA antibodies is a blood test. It is conducted to detect autoantibodies that might be present in your body, which can indicate certain autoimmune disorders. This test helps in diagnosing and monitoring these conditions.

38 services37 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.

35 services24 patients

X-ray of hand, 2 views 73120

An X-ray of the hand, 2 views, is a non-invasive imaging test that uses a small amount of radiation to produce pictures of the bones in your hand. Two different angles are captured to provide a comprehensive view. This helps in diagnosing injuries or conditions affecting your hand.

35 services18 patients

Injection, methylprednisolone acetate, 40 mg J1030

Methylprednisolone acetate is a medication given through an injection. It's a type of corticosteroid, which reduces inflammation and immune responses. It can be used to treat various conditions like arthritis, allergies, and skin diseases. This dose is 40 mg.

14 services11 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

Bon Secours-St Francis Xavier Hospital

Acute Care Hospitals · Charleston, SC

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number420065

Location2095 Henry Tecklenburg DriveCharleston, SC 29414 · Charleston County

Emergency services Birthing friendly

Trident Medical Center

Acute Care Hospitals · Charleston, SC

3/5 CMS rating

OwnershipProprietary

CMS Certification Number420079

Location9330 Medical Plaza DrCharleston, SC 29406 · Charleston County

Emergency services Birthing friendly

Roper Hospital

Acute Care Hospitals · Charleston, SC

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number420087

Location316 Calhoun StCharleston, SC 29401 · Charleston County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29486 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

$124.04 typical visit price

range $53.57 – $163.84

Typical copayment $31.01 (range $13.39 – $40.96)

Most-billed visit code 99204

Established Patient

$95.12 typical visit price

range $16.96 – $133.52

Typical copayment $23.78 (range $4.24 – $33.38)

Most-billed visit code 99214

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.

96.08/100

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

Scored through an Alternative Payment Model

Quality

92.17

Promoting Interoperability

100

Improvement Activities

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Other Providers at the Same Location NPPES 20

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

ELIZABETH BUTLER HARTJES PHARMD

Pharmacist