ASPEN SURGERY CENTER
NPI 1710177795
Clinic/Center - Ambulatory Surgical in Walnut Creek, CA

Q: What is Aspen Surgery Center, LLC's NPI number?

The NPI number for Aspen Surgery Center, LLC is 1710177795. It was assigned to this organization in the NPPES registry on July 26, 2007. The provider is doing business as Aspen Surgery Center.

Q: What is Aspen Surgery Center, LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Ambulatory Surgical, with taxonomy code 261QA1903X.

Active since July 26, 2007CLIA 05D1076006 · Waiver

133 LA CASA VIA STE 150, WALNUT CREEK, CA 94598(925) 210-8400(925) 947-3258 Get Directions Write a Review

NPPES record last updated: February 23, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Feb 23, 2023, Feb 9, 2021, Jan 28, 2019 (3 updates tracked since 2019).

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About Aspen Surgery Center NPPES

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

ASPEN SURGERY CENTER (NPI 1710177795) is a healthcare organization registered as an ambulatory surgical in Walnut Creek, California and active in the NPI registry since July 2007. The organization holds a CLIA Waiver certificate valid through November 1, 2027, maintains a secondary practice location in Walnut Creek, and lists Jennifer Boyd Baldock, Officer And Authorized Official, as its authorized official.

NPPES Registry Identity

NPI1710177795

Entity TypeOrganization

Primary Taxonomy261QA1903X

Legal Business NameASPEN SURGERY CENTER, LLC

Location Address133 LA CASA VIA STE 150Walnut Creek, CA 94598-3005

Mailing Address133 La Casa ViaWalnut Creek, CA 94598 · (925) 947-3282 · Fax (925) 947-3258

Phone(925) 210-8400

Fax(925) 947-3258

Organization SubpartNo

Authorized OfficialJennifer Boyd BaldockOfficer And Authorized Official · (615) 234-5954

Enumeration DateJuly 26, 2007

Last NPPES UpdateFebruary 23, 20233 updates tracked since enumeration

NPPES CertifiedFebruary 23, 2023

✔ NPI 1710177795 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Ambulatory SurgicalAmbulatory Health Care Facilities

Taxonomy Code261QA1903X

133 LA CASA VIA STE 150, Walnut Creek, CA 94598

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Other Names 1

Doing Business AsAspen Surgery Center

Secondary Practice Location 1

Location 1100 N Wiget Ln Ste 110Walnut Creek, CA 94598-5909 · Phone (925) 949-8784 · Fax (925) 949-8762

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D1076006

Aspen Surgery Center, LLC · Walnut Creek, CA

Active · expires Nov 1, 2027

CLIA Number05D1076006

Laboratory TypeAmbulatory Surgery Center

Certificate Effective DateNovember 2, 2025

Certificate Expiration DateNovember 1, 2027

Laboratory DirectorHaywon Lieh, MD

Laboratory Phone(925) 937-8100

Laboratory LocationAspen Surgery Center, LLC133 La Casa Via, Suite 150, Walnut Creek, CA 94598

CLIA data matches this NPI record on: Address Name

This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 62

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, onabotulinumtoxina, 1 unit J0585

Onabotulinumtoxina, also known as Botox, is a medication injected into muscles. It's used to treat various conditions by blocking nerve activity in the muscles, causing a temporary reduction in muscle activity. The units refer to the dosage.

4,550 services26 patients

Brachytherapy source, non-stranded, palladium-103, per source C2641

Brachytherapy source, non-stranded, palladium-103, per source is a type of internal radiation treatment. Tiny radioactive seeds of palladium-103 are placed in or near the area needing treatment, providing targeted therapy while minimizing harm to surrounding tissues.

3,636 services61 patients

Removal of cataract with insertion of prosthetic lens 66984

This is a procedure where a cloudy lens in your eye, known as a cataract, is removed. After removal, a clear artificial lens is inserted. This helps to restore your vision, enabling you to see clearly again.

1,567 services1,002 patients

Injection, non-radioactive, non-contrast, visualization adjunct (e.g., methylene blue, isosulfan blue), 1 mg Q9968

This procedure involves an injection of a non-radioactive, non-contrast substance like methylene blue or isosulfan blue. It's used to enhance visualization during certain medical procedures, improving accuracy and safety.

695 services46 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

690 services689 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

657 services640 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

645 services639 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

155 services155 patients

Removal of excessive skin and fat of upper eyelid 15823

This procedure, also known as upper eyelid surgery, is performed to remove excess skin and fat from the upper eyelid. It can help improve vision if heavy eyelids hinder it, and can also enhance the appearance of the eyes. It's a common, safe procedure.

140 services72 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

132 services132 patients

Complex removal of cataract with insertion of prosthetic lens 66982

This procedure involves removing a cloudy lens (cataract) from your eye and replacing it with a clear, artificial lens. It helps restore vision that has been affected by the cataract. The operation is usually done under local anesthesia.

115 services101 patients

Ultrasound scan of pelvic region through rectum 76872

An ultrasound scan of the pelvic region through the rectum is a medical procedure where a small, smooth device is gently inserted into the rectum. This device uses sound waves to create images of the internal structures in the lower abdomen, aiding in diagnosis and treatment planning.

97 services97 patients

Biopsy of prostate gland 55700

A biopsy of the prostate gland is a procedure where a small sample of tissue is taken from your body's internal gland, located near the bladder, for testing. This helps in diagnosing potential health issues. It's usually done with a fine needle and imaging technology for accuracy.

96 services96 patients

Removal of tissue, muscle, and membrane to correct eyelid drooping or paralysis 67908

This procedure involves the removal of excess tissue, muscle, and membrane from the eyelid to correct drooping or paralysis. It helps improve vision and appearance. The operation is performed under local or general anesthesia, ensuring patient comfort throughout.

96 services60 patients

Repair of groin hernia using an endoscope 49650

This procedure involves the use of an endoscope, a thin tube with a camera, to repair a hernia in the groin area. The surgeon makes small incisions, inserts the endoscope, and uses special tools to fix the hernia. This minimally invasive technique often results in quicker recovery times.

94 services65 patients

Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm 43249

This procedure involves using a flexible tube with a camera, called an endoscope, to gently expand narrowed areas in your esophagus, stomach, or upper small bowel. A small balloon is inflated, making it easier for food and liquid to pass through. It's safe and effective.

92 services83 patients

Partial removal of breast 19301

A partial removal of the breast, also known as a lumpectomy, involves taking out a portion of the breast tissue to eliminate concerning cells. It's typically performed when the problem area is limited in size. This procedure helps to preserve most of the breast's appearance while aiming to remove all the unhealthy cells.

89 services80 patients

Insertion of needle or tube into prostate for radiation therapy 55875

This procedure involves placing a fine needle or small tube into a gland located in the lower part of your body. It's done to deliver radiation therapy directly to the area, helping to treat conditions effectively. It's performed by a trained professional.

63 services62 patients

Design and construction of simple radiation treatment device 77332

A simple radiation treatment device is designed and built to target specific areas in your body with high energy rays. This process is carefully planned to ensure that the radiation accurately reaches the area needing treatment, while minimizing exposure to healthy tissues.

63 services62 patients

Complex application of radiation source 77778

Complex application of radiation source is a medical procedure used in cancer treatment. It involves the careful placement of radioactive materials in or near the tumor. This helps to destroy cancer cells while minimizing damage to healthy tissues. It's a precise and targeted approach.

63 services62 patients

Dilation of fluid outflow drainage within eye 66174

Dilation to improve eye fluid flow is a process where eye drops are used to widen or dilate your pupils. This allows more fluid to flow out of the eye, reducing pressure and helping to prevent or treat conditions like glaucoma.

59 services41 patients

Biopsy of lining of uterus and/or removal of polyp using an endoscope 58558

This procedure involves using a thin, flexible tool (endoscope) to examine and possibly remove a small tissue sample from the inner layer of your uterus. It may also involve removing a growth. It helps to identify any issues and plan the right treatment.

54 services54 patients

Insertion of central venous tube with port (5 years or older) 36561

A central venous tube with port is a small, flexible tube inserted into a large vein, usually in the chest. It allows for easy administration of medication, fluids, or blood products over a long period. A port is attached under the skin for easy access. It's safe for individuals aged 5 and above.

53 services52 patients

3d radiation therapy planning 77295

3D radiation therapy planning is a procedure that uses computer imaging to map out the area needing treatment. This ensures the radiation targets the disease precisely, while minimizing exposure to surrounding healthy tissues. It's a key step in preparing for effective radiation therapy.

53 services52 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.

51 services51 patients

Biopsy or removal of deep lymph nodes of underarm 38525

A biopsy or removal of deep underarm lymph nodes is a procedure where a small sample of lymph node tissue is taken for testing. This helps in diagnosing or ruling out conditions like infections or cancers. It involves a small incision and is typically done under local or general anesthesia.

48 services48 patients

Shock wave crushing of kidney stones 50590

Shock wave crushing of kidney stones, also known as Extracorporeal Shock Wave Lithotripsy (ESWL), is a non-invasive treatment. It involves the use of sound waves to break down kidney stones into small pieces that can easily pass through your urinary tract.

47 services41 patients

Imaging of urinary tract following injection of a contrast agent 74420

This procedure involves injecting a contrast agent into your body to help highlight the urinary tract during imaging. The contrast agent makes your urinary tract more visible on the images, providing detailed information about its structure and function. This can help in diagnosing any potential issues.

46 services38 patients

Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level 64483

This procedure involves injecting a mix of numbing and anti-inflammatory medication into a specific nerve root in the lower back. It helps manage pain and reduce inflammation. The process is guided by imaging technology for precision.

44 services25 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

42 services42 patients

Extracapsular removal of cataract with insertion of artificial lens and insertion of drainage device in front chamber of eye 66991

This is a two-part eye procedure. First, a cloudy lens (cataract) is removed from its outer layer and replaced with an artificial lens to improve vision. Second, a drainage device is inserted into the front part of the eye to manage fluid levels, preventing pressure build-up.

39 services23 patients

Repair of tendon of upper eyelid 67904

Repair of the tendon of the upper eyelid is a surgical procedure aimed at fixing a droopy eyelid. This condition can affect your vision and appearance. The procedure involves tightening the tendon to lift the eyelid to its normal position, improving both function and aesthetics.

34 services21 patients

Removal of bone from lower spine for decompression of nerve tissue using imaging guidance, accessed through the skin 0275T

This procedure involves removing a small portion of bone from your lower spine. The goal is to relieve pressure on your nerve tissue, improving comfort and mobility. It is done through the skin using imaging technology to ensure precision and safety.

33 services32 patients

Removal of nasal air passage under lining tissue 30140

This procedure, often done to improve breathing or address sinus issues, involves the removal of tissue from the lining of the nasal air passage. It's performed under anesthesia and recovery time varies based on individual health status.

31 services16 patients

Exam with injections of chemical for destruction of bladder using an endoscope 52287

This procedure involves the use of a thin, flexible tube with a light (endoscope) for internal examination. A chemical is then injected to help eliminate specific issues in the bladder. It's a standard and safe process.

30 services25 patients

Insertion of stent in ureter using an endoscope 52332

This procedure involves placing a small, flexible tube (stent) in your body's drainage system to help urine flow from the kidneys to the bladder. An endoscope, a thin tube with a light and camera, is used for precise placement.

29 services18 patients

Processing, preserving and transporting corneal tissue V2785

Processing, preserving, and transporting corneal tissue involve careful steps to ensure its viability for transplantation. The tissue is first cleaned, then preserved in a special solution. It's packed in a temperature-controlled container for safe transport to its destination.

27 services23 patients

Extensive repair of turning-outward eyelid defect 67917

This procedure corrects an eyelid defect where the eyelid turns outward, exposing the eye. The extensive repair involves surgical techniques to reshape the eyelid and ensure it functions properly. This helps protect the eye and improve comfort.

26 services23 patients

Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43255

This procedure involves using a flexible tube with a light, called an endoscope, to examine and treat bleeding in the esophagus, stomach, or upper small bowel. It's a safe, effective way to control bleeding and ensure your digestive health.

23 services19 patients

Reconstruction of up to 2/3 of eyelid with tissue from opposite eyelid 67971

This procedure involves reconstructing a significant portion of your eyelid using tissue from the other eyelid. It's performed when a large part of the eyelid is damaged or missing. The goal is to restore the function and appearance of your eyelid.

23 services22 patients

Full thickness skin graft to nose, ears, eyelids, or lips, 20.0 sq cm or less 15260

A full thickness skin graft is a procedure where a layer of skin is taken from one area of the body and transplanted to another. If it's done on the nose, ears, eyelids, or lips, it helps restore these areas when damaged. The size of the graft is 20.0 sq cm or less.

22 services20 patients

Removal of eye fluid (vitreous) between lens and retina 67036

This procedure, known as a vitrectomy, involves removing some or all of the vitreous humor, the clear gel-like substance in the eye. It's done to treat various eye conditions, like retinal detachment or macular hole. The aim is to improve or stabilize vision. It's performed under local or general anesthesia.

22 services21 patients

Extensive repair of turning-inward eyelid defect 67924

This procedure helps correct an eyelid defect where the eyelid turns inward, causing discomfort or vision issues. A surgeon makes precise adjustments to the eyelid's structure, alleviating the inward turn and improving eye health and comfort.

22 services15 patients

Control of bleeding of upper large bowel using a flexible endoscope 45382

This procedure involves using a flexible endoscope, a thin tube with a light and camera, to view and control bleeding in the upper large bowel. Special tools can be passed through the endoscope to stop the bleeding. It's a minimally invasive way to address this issue.

21 services21 patients

Injection of implant material beneath lining of bladder and/or urethra using an endoscope 51715

This is a procedure where a substance is inserted under the bladder or urethra lining using a special instrument called an endoscope. This helps to support these areas and improve their function. It's done in a safe, controlled medical environment.

21 services20 patients

Transplantation of outer layer of corneal tissue 65756

The transplantation of the outer layer of corneal tissue is a procedure to replace damaged or diseased corneal tissue with healthy tissue from a donor. This can improve vision and alleviate pain or discomfort.

21 services18 patients

Crushing of stone of ureter with insertion of stent using an endoscope 52356

This procedure involves using a thin, flexible tube (endoscope) to locate and break down kidney stones in the ureter. After this, a small tube (stent) is inserted to help maintain an open pathway for urine to flow.

20 services20 patients

Removal of large bowel tissue using a flexible endoscope 45390

This procedure, known as a colonoscopy, involves using a flexible endoscope to examine and potentially remove tissue from the large intestine. The endoscope allows the doctor to view the bowel lining directly and remove any abnormal tissue for further analysis.

19 services19 patients

Removal of growth under skin of back or lower sides, 3.0 cm or more 21931

This procedure involves surgical removal of a growth located under the skin of your back or lower sides. If the growth is 3.0 cm or larger, it may require a more extensive procedure. This is done to prevent potential health complications and improve comfort.

18 services16 patients

Correction of toe joint deformity 28285

Correction of toe joint deformity is a procedure to fix misshapen toe joints. This can involve realigning the bones, removing bone or tissue, or implanting devices to improve joint function. It can help reduce pain and improve mobility.

17 services15 patients

Probing of nasal tear duct with insertion of tube or stent 68815

This procedure treats blocked tear ducts. A thin probe is gently inserted into the tear duct to clear any blockage. Afterwards, a small tube or stent is placed to keep the pathway open, allowing tears to drain normally again.

17 services16 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

16 services16 patients

Destruction and/or removal of growth of bladder and urethra using an endoscope, 2.0-5.0 cm 52235

This procedure involves using a thin, flexible tool called an endoscope to examine and remove a growth in your bladder and urethra. The growth size ranges from 2.0-5.0 cm. This is done to ensure your urinary system functions properly.

16 services14 patients

Reshaping of nasal cartilage 30520

Reshaping of nasal cartilage, also known as rhinoplasty, is a surgical procedure to modify the structure of the nose for aesthetic or functional purposes. It involves adjusting the cartilage and bone in the nose to achieve the desired shape or to improve breathing.

15 services15 patients

Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare 43251

This procedure involves the use of a thin, flexible instrument called an endoscope to visualize and remove abnormal growths, known as polyps, from the esophagus, stomach, or upper small bowel. A tool called a mechanical snare is used to safely cut and remove these growths.

15 services15 patients

Injection beneath lining of large bowel using a flexible endoscope 45381

This procedure involves a flexible tube, called an endoscope, being inserted into the large bowel. A small needle is then passed through the tube to inject medication under the bowel lining. This is typically done to treat inflammation or bleeding.

15 services15 patients

Destruction and/or removal of growth of bladder and urethra using an endoscope, 0.5-2.0 cm 52234

This procedure involves using a special instrument, an endoscope, to view and treat a small growth in the bladder and urethra. It's a minimally invasive method to remove or destroy growths measuring 0.5-2.0 cm, aiding in better urinary health.

15 services15 patients

Insertion of guide wire with dilation of esophagus using a flexible endoscope 43248

This is a procedure where a thin tube, called an endoscope, is gently passed through your mouth into your esophagus. A guide wire is then inserted to help widen any narrow areas. This helps improve swallowing and reduce discomfort.

14 services14 patients

Incision of tear duct using an endoscope 31239

This procedure involves making a small cut in your tear duct with a special tool called an endoscope. It helps to improve tear drainage and reduce issues like excessive tearing or eye infections. It's a common, safe procedure.

13 services13 patients

Banding of hemorrhoids using a flexible endoscope (colonoscope) 45398

Banding of hemorrhoids using a colonoscope is a procedure to treat swollen blood vessels in your lower digestive tract. A flexible tube with a light and camera, called a colonoscope, helps locate the hemorrhoids. Then, tiny rubber bands are placed around them, cutting off their blood supply. This causes them to shrink and fall off.

12 services12 patients

Complete laser vaporization of prostate including control of bleeding using an endoscope 52648

This procedure involves using a special light instrument to carefully remove tissue from a gland located in the lower body. This helps improve the flow of body fluids. The process is done through a tube-like device and also controls any bleeding.

12 services12 patients

Crushing, fragmenting, and removal of bladder stones, less than 2.5 cm 52317

This procedure involves breaking down and removing small stones found in your bladder. The stones are first crushed into smaller pieces, then removed to help alleviate discomfort and prevent further complications.

11 services11 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 Aspen Surgery Center, LLC's NPI number?

The NPI number for Aspen Surgery Center, LLC is 1710177795. It was assigned to this organization in the NPPES registry on July 26, 2007. The provider is doing business as Aspen Surgery Center.

Where is Aspen Surgery Center, LLC located?

Aspen Surgery Center, LLC is located at 133 La Casa Via Ste 150, Walnut Creek, CA 94598. The listed phone number is (925) 210-8400.

What is Aspen Surgery Center, LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Ambulatory Surgical, with taxonomy code 261QA1903X.

Does Aspen Surgery Center, LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D1076006) is associated with this NPI, valid through November 1, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Aspen Surgery Center, LLC was last updated on February 23, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.

About Aspen Surgery Center NPPES

NPPES Registry Identity

Specialties & Licenses

Other Names 1

Secondary Practice Location 1

CLIA Laboratory Certificates CMS CLIA

Certificate of Waiver · 05D1076006

Areas of Expertise CMS Part B claims 62

Frequently Asked Questions NPPES & CMS

What is Aspen Surgery Center, LLC's NPI number?

Where is Aspen Surgery Center, LLC located?

What is Aspen Surgery Center, LLC's specialty?

Does Aspen Surgery Center, LLC hold a CLIA laboratory certificate?

When was this NPI record last updated?

Certificate of Waiver 05D1076006