Question 1

What is Howard Guan, M.D.'s email address?

Accepted Answer

Howard Guan, M.D.'s email address is available to verified Dmand AI users. Their primary practice is located at Tory Prestera MD Inc. in San Marcos, California. Sign up for a free trial to reveal their direct contact information.

Question 2

What is Howard Guan, M.D.'s phone number?

Accepted Answer

Howard Guan, M.D.'s direct phone number is available to Dmand AI subscribers. To access their direct number, start a free trial.

Question 3

Where does Howard Guan, M.D. practice?

Accepted Answer

Howard Guan, M.D. is a Glaucoma Specialist (Ophthalmology) Physician physician currently practicing at Tory Prestera MD Inc. in San Marcos, California. They hold admitting privileges at 1 hospital(s), including Tory Prestera MD Inc.. To see all the affiliations of Howard Guan, M.D., start a free trial.

Question 4

What is Howard Guan, M.D.'s specialty?

Accepted Answer

Howard Guan, M.D. is a board-certified Glaucoma Specialist (Ophthalmology) Physician physician with a subspecialty in Glaucoma Specialist. They practice at Tory Prestera MD Inc. in San Marcos, California.

Question 5

What procedures does Howard Guan, M.D. perform?

Accepted Answer

Howard Guan, M.D. performs procedures across 3521 clinical categories. Their most commonly billed procedures based on Medicare claims data include , , and . Full procedure and CPT code data is available to Dmand AI subscribers, start a free trial.

Question 6

What is Howard Guan, M.D.'s NPI number?

Accepted Answer

Howard Guan, M.D.'s National Provider Identifier (NPI) is 1134427636. This is a public identifier issued by CMS and can be verified at the NPPES NPI Registry. Their primary taxonomy code is 207WX0009X, corresponding to Glaucoma Specialist (Ophthalmology) Physician.

Question 7

What EHR does Howard Guan, M.D. use?

Accepted Answer

The EHR and practice technology used by Howard Guan, M.D. at Tory Prestera MD Inc. is available to Dmand AI subscribers. Sign up for a free trial to unlock the full technology stack.

Question 8

What insurance does Howard Guan, M.D. accept?

Accepted Answer

Howard Guan, M.D. accepts 16 insurance plans. A full list of accepted payers is available in the profile above.

Question 9

What hospital is Howard Guan, M.D. affiliated with?

Accepted Answer

Howard Guan, M.D. holds hospital privileges at 1 institution(s). Their primary affiliation is Tory Prestera MD Inc. in San Marcos, California.

Question 10

What are Howard Guan, M.D.'s board certifications?

Accepted Answer

Howard Guan, M.D. is board certified by American Board of Ophthalmology in Ophthalmology. They have maintained this certification since .

Question 11

Where did Howard Guan, M.D. go to medical school?

Accepted Answer

Howard Guan, M.D. received their medical degree from Loma Linda University School Of Medicine in 2010. They completed their Ophthalmology residency at Loma Linda University Health Education Consortium and a fellowship in Glaucoma at Boston University Medical Center.

Question 12

How many patients does Howard Guan, M.D. see per year?

Accepted Answer

Based on CMS Medicare Part B claims data, Howard Guan, M.D. served approximately 1786 Medicare beneficiaries in 2023. Total patient volume including non-Medicare patients is available to Dmand AI subscribers.

Question 13

What group practice does Howard Guan, M.D. belong to?

Accepted Answer

Howard Guan, M.D. is affiliated with TORY PRESTERA MD INC., a small (2–5 physician) practice with 2 physicians based in San Marcos, California. The practice is independently owned.

Question 14

Does Howard Guan, M.D. conduct clinical research or trials?

Accepted Answer

Howard Guan, M.D. has 1 indexed publications on record and no active clinical trial listings were found at time of last verification. Their research activity is available to Dmand AI subscribers. Sign up for a free trial to unlock their full research activity.

#	Procedure Code (CPT®/HCPCS II)	Procedure Patients	Procedure Volume
1	99214Established patient office or other outpatient visit, 30-39 minutes	510	647
2	92133Diagnostic imaging of optic nerve of eye	237	243
3	92083Measurement of field of vision during daylight conditions	192	199
4	92250Photography of the retina	144	147
5	92134Diagnostic imaging of retina	106	122

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Howard Guan, M.D.

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