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Edit this profileAt a glance
- 9339 Genesee Ave Ste 350, San Diego, CA 92121
About Dr. Hamman
Based in San Diego, CA, Michael S. Hamman, MD is listed in the NPI registry under micrographic dermatologic surgery (mds). Michael graduated from University of Washington School of Medicine in 2005. Michael is also listed as specializing in dermatology and emergency medicine. Medicare claims data shows Michael provided 1,098 services to 912 patients. The services billed most often include removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks, removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks, and intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm. NPI 1538346911 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (858) 454-4300
- Email not available
Practice Locations
9339 GENESEE AVE STE 350
San Diego, CA 92121
Procedures Most Often Billed to Medicare
1,098 services · 912 patients · 21 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks | Procedure | 17311 |
279 | As often as other peers in Micrographic Dermatologic… |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks | Procedure | 17312 |
217 | More often than most peers in Micrographic Dermatologic… |
| Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm | Procedure | 12032 |
85 | More often than most peers in Micrographic Dermatologic… |
| Removal and microscopic exam of growth of trunk, arms, or legs, 1-5 tissue blocks | Procedure | 17313 |
68 | As often as other peers in Micrographic Dermatologic… |
| Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 2.6-5.0 cm | Procedure | 12052 |
67 | More often than most peers in Micrographic Dermatologic… |
| Removal and microscopic exam of growth of trunk, arms, or legs, each additional stage, 1-5 tissue blocks | Procedure | 17314 |
42 | More often than most peers in Micrographic Dermatologic… |
| Intermediate repair of wound of neck, hands, feet, or genitals, 2.6-7.5 cm | Procedure | 12042 |
39 | More often than most peers in Micrographic Dermatologic… |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
31 | Less often than most peers in Micrographic Dermatologic… |
| Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.0 sq cm or less | Procedure | 14060 |
27 | As often as other peers in Micrographic Dermatologic… |
| Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm | Procedure | 11602 |
20 | As often as other peers in Micrographic Dermatologic… |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other micrographic dermatologic surgery specialists in San Diego 4
Same specialty, same city.
Trained at University of Washington School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 2005 at University of Washington School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks 7
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Hamman?
Dr. Hamman is a micrographic dermatologic surgery (mds) in San Diego, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Dr. Hamman's address?
Dr. Hamman is listed at 9339 Genesee Ave Ste 350, San Diego, CA 92121. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Hamman?
The number on file is (858) 454-4300. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Hamman?
Dr. Hamman's National Provider Identifier is 1538346911. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Hamman train?
Dr. Hamman attended University of Washington School of Medicine, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Hamman have?
Dr. Hamman has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Hamman perform?
According to Medicare billing data, Dr. Hamman performs procedures including removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks, removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks and intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Hamman's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Hamman. If this is you, claiming it is free.
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