Dr. Lawrence A. May, MD
- Medicare services, 2024
- 3,345
- Medicare patients, 2024
- 259
- Part D claims, 2024
- 5,031
- Publications
- 5
- Hospital affiliations
- 1
- Practice address
- 16742 Stagg St, Ste 120, Vannuys, CA 91406
- Practice phone
- Call (818) 779-0496
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Primex Clinical Laboratories
Clinical Lab - Full Service · Vannuys, California
Find Dr. May's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Lawrence A. May is an internist in Vannuys, California
Dr. May practices at Primex Clinical Laboratories in Vannuys, California.
Dr. May's NPI, 1487743787, was assigned on October 12, 2006. Dr. May graduated from Harvard Medical School in 1974. Dr. May's California license number on file is G36103.
- NPI
- 1487743787NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6507957776
- NPI enumeration date
- October 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (818) 779-0496
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 78
- Medical school graduation
- 1974
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lawrence A. May practices at Primex Clinical Laboratories in Vannuys, California
Dr. May's primary practice is Primex Clinical Laboratories, at 16742 Stagg St, Ste 120, Vannuys, CA 91406. The practice phone is (818) 779-0496.
- Primex Clinical Laboratories16742 Stagg St, Ste 120, Vannuys, CA 91406Phone(818) 779-0496
Source: Dmand AI Affiliation Data
Dr. Lawrence A. May is affiliated with 4 sites of care and 1 medical group
Dr. May's primary practice is Primex Clinical Laboratories in Vannuys, California. Dr. May is also affiliated with Providence Cedars-Sinai Tarzana Medical Center. The medical group on file is Lawrence A. May, MD. Dmand AI also links Dr. May to 1 more group practice or clinic and 1 home health agency, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Lawrence A. May's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. May practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Primex Clinical Laboratories | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lawrence A. May is one of 16,751 internists in California
Internal medicine is Dr. May's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. May is board certified in internal medicine by the American Board of Internal Medicine. Dr. May has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acne, acute mini-stroke (TIA), acute skin infection, aneurysm, arteritis, arthritis and asthma among the conditions Dr. May treats.
Internists near Dr. May
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Lawrence A. May billed Medicare for 3,345 services in 2024
CMS data shows 3,345 Medicare services from Dr. May across 16 procedure codes in 2024, for 259 Medicare patients. Medicare paid $161,595 for them. Every service was in an office.
Dr. May's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2,2482024: 1,75422%
- Other services
- 2023: 1282024: 674427%
- Drugs given in the office
- 2023: 2012024: 37084%
- Tests and treatments
- 2023: 4202024: 31924%
- Surgery
- 2023: 1592024: 22843%
Dr. May compared with the California median for internists, 2024
- Dr. May
- California median
- Medicare services
- 3,345vs 3619.3 times
- Medicare patients
- 259vs 15172% above
- Part D claims
- 4,448vs 42110.6 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. May's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. May?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. May and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lawrence A. May treated 259 Medicare patients in 2024, average age 78
CMS counts 259 Medicare patients who saw Dr. May in 2024. The largest group is 75 to 84, with 121 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. May's median patient age at 75, with 49% women.
Dr. May's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. May's Medicare patients by sex, 2024
- Women13251%
- Men12749%
Chronic conditions among Dr. May's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis41%
- Diabetes30%
- Ischemic heart disease25%
- Chronic kidney disease18%
- Cancer17%
- Atrial fibrillation16%
Share of Medicare patients with each condition. A patient can have several.
Dr. May's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lawrence A. May wrote 5,031 Medicare Part D claims in 2024
In 2024, Dr. May wrote 5,031 Medicare Part D claims for 320 patients. 89% of them were for generic drugs. CMS names the drug for 4,448 of them, across 104 drugs with 11 or more claims each, at $300,059 in total drug cost. In 2023, CMS named 4,546 claims across 100 drugs.
Dr. May's Part D claims by kind of drug, 2024
- Generic4,464 claims89%
- Brand-name545 claims11%
- Other22 claims0%
Dr. May's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. May's Part D claims, 2024
- Opioids2%109 of 5,031 claims
- Antibiotics3%152 of 5,031 claims
- Antipsychotics, patients 65 and over1%27 of 5,031 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4,5462024: 4,4482%
Drugs named by CMS: 104 in 2024, 100 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Lawrence A. May takes part in Medicare
Dr. May accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Lawrence A. May has 5 publications on record
Dmand AI links 5 papers to Dr. May in 2012. 2012 was the busiest year, with 2. The most frequent topics are Amino Acids, Anti-Inflammatory Agents, Non-Steroidal and C-Reactive Protein. Dr. May has published most often in Am J Ther. Dr. May's most frequent co-authors are Brandon Ian Roth, MD, David Samuel Silver, MD and Michael Alan Silver, MD.
Topics Dr. May writes about most
- Amino Acids
- Anti-Inflammatory Agents, Non-Steroidal
- C-Reactive Protein
- Double-Blind Method
- Low Back Pain
Dr. May's most frequent co-authors
- Brandon Ian Roth, MD1 shared paper
- David Samuel Silver, MD1 shared paper
- Michael Alan Silver, MD1 shared paper
Recent publications by Dr. May
See who Dr. May researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. May works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Lawrence A. May received $54,829 in industry payments from 2016 to 2025
CMS Open Payments shows 522 general payments to Dr. May from 33 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 68% of the total. Kowa Pharmaceuticals America, Inc. paid the most, $46,529.
General payments to Dr. May by program year, 2016 to 2025
General payments to Dr. May by kind, 2016 to 2025
- Speaker and faculty fees$37,43868%
- Food and beverage$11,04220%
- Travel and lodging$6,30612%
- Education$430%
Companies that paid Dr. May the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lawrence A. May has 1 award and honors on record
Dmand AI lists 1 award for Dr. May, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. May
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Lawrence A. May graduated from Harvard Medical School
Dr. May graduated from Harvard Medical School in 1974.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Lawrence A. May accepts plans from 15 insurance carriers
Dr. May is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Molina
- Regence Health Plans
- +7 more carriersWith a free account
Plan types Dr. May accepts, by number of carriers
- PPO9
- HMO8
- Medicare8
- EPO4
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Lawrence A. May's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Lawrence A. May
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Lawrence A. May's NPI number?
Dr. Lawrence A. May's NPI number is 1487743787. It was assigned on October 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Lawrence A. May?
Dr. Lawrence A. May is an internist in Vannuys, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Lawrence A. May practice?
Dr. May practices at 16742 Stagg St, Ste 120, Vannuys, CA 91406. Dr. May's primary practice is Primex Clinical Laboratories in Vannuys, California. Dmand AI also links Dr. May to 1 group practice or clinic and 1 home health agency.
What is Dr. Lawrence A. May's office phone number?
The practice phone on file for Dr. May is (818) 779-0496.
What is Dr. Lawrence A. May's medical license number?
Dr. May's California license number on file is G36103.
Which hospitals is Dr. Lawrence A. May affiliated with?
Dr. May is affiliated with Providence Cedars-Sinai Tarzana Medical Center.
What medical group is Dr. Lawrence A. May part of?
Dr. May is linked to Lawrence A. May, MD.
Does Dr. Lawrence A. May accept Medicare?
Yes. CMS data shows Dr. May billed Medicare for 3,345 services in 2024, and Dr. May accepts Medicare assignment.
How many Medicare patients does Dr. Lawrence A. May see?
CMS counts 259 Medicare patients who saw Dr. May in 2024, with an average age of 78.
Is Dr. Lawrence A. May board certified?
Yes. Dr. May is board certified in internal medicine by the American Board of Internal Medicine.
Show 8 more questionsShow fewer questions
What services does Dr. Lawrence A. May bill to Medicare?
In 2024, Dr. May's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and medicare service (G2211).
Where did Dr. Lawrence A. May go to medical school?
Dr. May graduated from Harvard Medical School in 1974.
What drugs does Dr. Lawrence A. May prescribe most?
In 2024 Medicare Part D data, Dr. May's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Alprazolam.
Has Dr. Lawrence A. May received payments from drug or device companies?
CMS Open Payments shows $54,829 in general payments to Dr. May from 33 companies from 2016 to 2025. The largest total came from Kowa Pharmaceuticals America, Inc.
How long has Dr. Lawrence A. May been practicing?
Dr. May graduated from medical school in 1974, 52 years ago.
Does Dr. Lawrence A. May do research?
Dmand AI links 5 publications to Dr. May.
Who does Dr. Lawrence A. May publish with?
Dr. May's most frequent co-authors are Brandon Ian Roth, MD (1 shared paper), David Samuel Silver, MD (1 shared paper) and Michael Alan Silver, MD (1 shared paper).
What insurance does Dr. Lawrence A. May accept?
Dr. May is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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